Home / 861,541.02-1,188,906.90-539,428.73

Finding the Fourth Proportional to 861,541.02, 1,188,906.90 and 539,428.73

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Solution

The fourth proportional to 861,541.02, 1,188,906.90 and 539,428.73 is: 744,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,541.02 : 1,188,906.90 = 539,428.73 : x
  2. Step 2: Convert to fraction form
    861,541.02/1,188,906.90 = 539,428.73/x
  3. Step 3: Cross multiply
    861,541.02x = 1,188,906.90 × 539,428.73
  4. Step 4: Simplify right side
    861,541.02x = 641,330,533,210.70
  5. Step 5: Solve for x
    x = 641,330,533,210.70/861,541.02
  6. Step 6: Final answer
    x = 744,399.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.