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Finding the Fourth Proportional to 625,095.60, 862,634.04 and 338,614.80

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Solution

The fourth proportional to 625,095.60, 862,634.04 and 338,614.80 is: 467,289.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,095.60 : 862,634.04 = 338,614.80 : x
  2. Step 2: Convert to fraction form
    625,095.60/862,634.04 = 338,614.80/x
  3. Step 3: Cross multiply
    625,095.60x = 862,634.04 × 338,614.80
  4. Step 4: Simplify right side
    625,095.60x = 292,100,652,927.79
  5. Step 5: Solve for x
    x = 292,100,652,927.79/625,095.60
  6. Step 6: Final answer
    x = 467,289.57

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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.