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Finding the Fourth Proportional to 616,355.64, 850,554.50 and 344,425.78

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Solution

The fourth proportional to 616,355.64, 850,554.50 and 344,425.78 is: 475,298.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,355.64 : 850,554.50 = 344,425.78 : x
  2. Step 2: Convert to fraction form
    616,355.64/850,554.50 = 344,425.78/x
  3. Step 3: Cross multiply
    616,355.64x = 850,554.50 × 344,425.78
  4. Step 4: Simplify right side
    616,355.64x = 292,952,897,095.01
  5. Step 5: Solve for x
    x = 292,952,897,095.01/616,355.64
  6. Step 6: Final answer
    x = 475,298.48

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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.