Home / 939,165.60-1,407,711.60-518,743.20

Finding the Fourth Proportional to 939,165.60, 1,407,711.60 and 518,743.20

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Solution

The fourth proportional to 939,165.60, 1,407,711.60 and 518,743.20 is: 777,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,165.60 : 1,407,711.60 = 518,743.20 : x
  2. Step 2: Convert to fraction form
    939,165.60/1,407,711.60 = 518,743.20/x
  3. Step 3: Cross multiply
    939,165.60x = 1,407,711.60 × 518,743.20
  4. Step 4: Simplify right side
    939,165.60x = 730,240,820,061.12
  5. Step 5: Solve for x
    x = 730,240,820,061.12/939,165.60
  6. Step 6: Final answer
    x = 777,542.13

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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.