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Finding the Fourth Proportional to 625,557.47, 863,269.68 and 339,077.55

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Solution

The fourth proportional to 625,557.47, 863,269.68 and 339,077.55 is: 467,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,557.47 : 863,269.68 = 339,077.55 : x
  2. Step 2: Convert to fraction form
    625,557.47/863,269.68 = 339,077.55/x
  3. Step 3: Cross multiply
    625,557.47x = 863,269.68 × 339,077.55
  4. Step 4: Simplify right side
    625,557.47x = 292,715,372,592.49
  5. Step 5: Solve for x
    x = 292,715,372,592.49/625,557.47
  6. Step 6: Final answer
    x = 467,927.23

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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.