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Finding the Fourth Proportional to 625,280.94, 862,891.65 and 338,803.11

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Solution

The fourth proportional to 625,280.94, 862,891.65 and 338,803.11 is: 467,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,280.94 : 862,891.65 = 338,803.11 : x
  2. Step 2: Convert to fraction form
    625,280.94/862,891.65 = 338,803.11/x
  3. Step 3: Cross multiply
    625,280.94x = 862,891.65 × 338,803.11
  4. Step 4: Simplify right side
    625,280.94x = 292,350,374,613.03
  5. Step 5: Solve for x
    x = 292,350,374,613.03/625,280.94
  6. Step 6: Final answer
    x = 467,550.43

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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.