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Finding the Fourth Proportional to 616,043.43, 850,142.90 and 344,122.79

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Solution

The fourth proportional to 616,043.43, 850,142.90 and 344,122.79 is: 474,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,043.43 : 850,142.90 = 344,122.79 : x
  2. Step 2: Convert to fraction form
    616,043.43/850,142.90 = 344,122.79/x
  3. Step 3: Cross multiply
    616,043.43x = 850,142.90 × 344,122.79
  4. Step 4: Simplify right side
    616,043.43x = 292,553,540,675.36
  5. Step 5: Solve for x
    x = 292,553,540,675.36/616,043.43
  6. Step 6: Final answer
    x = 474,891.10

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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.