Home / 657,931,460.70-986,897,191.05-554,619,330.30

Finding the Fourth Proportional to 657,931,460.70, 986,897,191.05 and 554,619,330.30

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Solution

The fourth proportional to 657,931,460.70, 986,897,191.05 and 554,619,330.30 is: 831,928,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,931,460.70 : 986,897,191.05 = 554,619,330.30 : x
  2. Step 2: Convert to fraction form
    657,931,460.70/986,897,191.05 = 554,619,330.30/x
  3. Step 3: Cross multiply
    657,931,460.70x = 986,897,191.05 × 554,619,330.30
  4. Step 4: Simplify right side
    657,931,460.70x = 547,352,259,175,102,080
  5. Step 5: Solve for x
    x = 547,352,259,175,102,080/657,931,460.70
  6. Step 6: Final answer
    x = 831,928,995.45

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Half scale
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Double scale
Find fourth proportional to 657,931,461.70, 986,897,192.55 and 554,619,331.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.