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Finding the Fourth Proportional to 526,687.71, 726,829.02 and 284,970.30

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Solution

The fourth proportional to 526,687.71, 726,829.02 and 284,970.30 is: 393,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,687.71 : 726,829.02 = 284,970.30 : x
  2. Step 2: Convert to fraction form
    526,687.71/726,829.02 = 284,970.30/x
  3. Step 3: Cross multiply
    526,687.71x = 726,829.02 × 284,970.30
  4. Step 4: Simplify right side
    526,687.71x = 207,124,683,878.11
  5. Step 5: Solve for x
    x = 207,124,683,878.11/526,687.71
  6. Step 6: Final answer
    x = 393,259.00

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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.