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Finding the Fourth Proportional to 526,400.71, 726,430.89 and 284,683.54

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Solution

The fourth proportional to 526,400.71, 726,430.89 and 284,683.54 is: 392,862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,400.71 : 726,430.89 = 284,683.54 : x
  2. Step 2: Convert to fraction form
    526,400.71/726,430.89 = 284,683.54/x
  3. Step 3: Cross multiply
    526,400.71x = 726,430.89 × 284,683.54
  4. Step 4: Simplify right side
    526,400.71x = 206,802,917,330.55
  5. Step 5: Solve for x
    x = 206,802,917,330.55/526,400.71
  6. Step 6: Final answer
    x = 392,862.16

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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.