Home / 657,966.20-986,949.30-159,330.20

Finding the Fourth Proportional to 657,966.20, 986,949.30 and 159,330.20

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Solution

The fourth proportional to 657,966.20, 986,949.30 and 159,330.20 is: 238,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,966.20 : 986,949.30 = 159,330.20 : x
  2. Step 2: Convert to fraction form
    657,966.20/986,949.30 = 159,330.20/x
  3. Step 3: Cross multiply
    657,966.20x = 986,949.30 × 159,330.20
  4. Step 4: Simplify right side
    657,966.20x = 157,250,829,358.86
  5. Step 5: Solve for x
    x = 157,250,829,358.86/657,966.20
  6. Step 6: Final answer
    x = 238,995.30

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Double scale
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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.