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Finding the Fourth Proportional to 625,086.38, 862,623.36 and 338,606.48

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Solution

The fourth proportional to 625,086.38, 862,623.36 and 338,606.48 is: 467,279.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,086.38 : 862,623.36 = 338,606.48 : x
  2. Step 2: Convert to fraction form
    625,086.38/862,623.36 = 338,606.48/x
  3. Step 3: Cross multiply
    625,086.38x = 862,623.36 × 338,606.48
  4. Step 4: Simplify right side
    625,086.38x = 292,089,859,495.37
  5. Step 5: Solve for x
    x = 292,089,859,495.37/625,086.38
  6. Step 6: Final answer
    x = 467,279.19

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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.