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Finding the Fourth Proportional to 655,252.92, 904,528 and 440,517.50

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Solution

The fourth proportional to 655,252.92, 904,528 and 440,517.50 is: 608,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,252.92 : 904,528 = 440,517.50 : x
  2. Step 2: Convert to fraction form
    655,252.92/904,528 = 440,517.50/x
  3. Step 3: Cross multiply
    655,252.92x = 904,528 × 440,517.50
  4. Step 4: Simplify right side
    655,252.92x = 398,460,413,240
  5. Step 5: Solve for x
    x = 398,460,413,240/655,252.92
  6. Step 6: Final answer
    x = 608,101.70

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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.