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Finding the Fourth Proportional to 655,345.52, 904,374.60 and 368,865.44

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Solution

The fourth proportional to 655,345.52, 904,374.60 and 368,865.44 is: 509,033.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,345.52 : 904,374.60 = 368,865.44 : x
  2. Step 2: Convert to fraction form
    655,345.52/904,374.60 = 368,865.44/x
  3. Step 3: Cross multiply
    655,345.52x = 904,374.60 × 368,865.44
  4. Step 4: Simplify right side
    655,345.52x = 333,592,534,753.82
  5. Step 5: Solve for x
    x = 333,592,534,753.82/655,345.52
  6. Step 6: Final answer
    x = 509,033.06

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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.