Home / 698,741.80-1,048,112.70-610,168.30

Finding the Fourth Proportional to 698,741.80, 1,048,112.70 and 610,168.30

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Solution

The fourth proportional to 698,741.80, 1,048,112.70 and 610,168.30 is: 915,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,741.80 : 1,048,112.70 = 610,168.30 : x
  2. Step 2: Convert to fraction form
    698,741.80/1,048,112.70 = 610,168.30/x
  3. Step 3: Cross multiply
    698,741.80x = 1,048,112.70 × 610,168.30
  4. Step 4: Simplify right side
    698,741.80x = 639,525,144,367.41
  5. Step 5: Solve for x
    x = 639,525,144,367.41/698,741.80
  6. Step 6: Final answer
    x = 915,252.45

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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.