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Finding the Fourth Proportional to 655,143.44, 904,024.68 and 368,762

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Solution

The fourth proportional to 655,143.44, 904,024.68 and 368,762 is: 508,850.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,143.44 : 904,024.68 = 368,762 : x
  2. Step 2: Convert to fraction form
    655,143.44/904,024.68 = 368,762/x
  3. Step 3: Cross multiply
    655,143.44x = 904,024.68 × 368,762
  4. Step 4: Simplify right side
    655,143.44x = 333,369,949,046.16
  5. Step 5: Solve for x
    x = 333,369,949,046.16/655,143.44
  6. Step 6: Final answer
    x = 508,850.32

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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.