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Finding the Fourth Proportional to 616,122.38, 850,218.53 and 344,136.13

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Solution

The fourth proportional to 616,122.38, 850,218.53 and 344,136.13 is: 474,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,122.38 : 850,218.53 = 344,136.13 : x
  2. Step 2: Convert to fraction form
    616,122.38/850,218.53 = 344,136.13/x
  3. Step 3: Cross multiply
    616,122.38x = 850,218.53 × 344,136.13
  4. Step 4: Simplify right side
    616,122.38x = 292,590,910,722.26
  5. Step 5: Solve for x
    x = 292,590,910,722.26/616,122.38
  6. Step 6: Final answer
    x = 474,890.90

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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.