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Finding the Fourth Proportional to 616,445.47, 850,691.87 and 344,513.08

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Solution

The fourth proportional to 616,445.47, 850,691.87 and 344,513.08 is: 475,426.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,445.47 : 850,691.87 = 344,513.08 : x
  2. Step 2: Convert to fraction form
    616,445.47/850,691.87 = 344,513.08/x
  3. Step 3: Cross multiply
    616,445.47x = 850,691.87 × 344,513.08
  4. Step 4: Simplify right side
    616,445.47x = 293,074,476,897.38
  5. Step 5: Solve for x
    x = 293,074,476,897.38/616,445.47
  6. Step 6: Final answer
    x = 475,426.44

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1.5x scale

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.