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Finding the Fourth Proportional to 625,070.63, 862,601.60 and 338,590.71

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Solution

The fourth proportional to 625,070.63, 862,601.60 and 338,590.71 is: 467,257.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,070.63 : 862,601.60 = 338,590.71 : x
  2. Step 2: Convert to fraction form
    625,070.63/862,601.60 = 338,590.71/x
  3. Step 3: Cross multiply
    625,070.63x = 862,601.60 × 338,590.71
  4. Step 4: Simplify right side
    625,070.63x = 292,068,883,878.13
  5. Step 5: Solve for x
    x = 292,068,883,878.13/625,070.63
  6. Step 6: Final answer
    x = 467,257.41

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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.