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Finding the Fourth Proportional to 625,381.56, 939,327.71 and 373,154.31

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Solution

The fourth proportional to 625,381.56, 939,327.71 and 373,154.31 is: 560,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,381.56 : 939,327.71 = 373,154.31 : x
  2. Step 2: Convert to fraction form
    625,381.56/939,327.71 = 373,154.31/x
  3. Step 3: Cross multiply
    625,381.56x = 939,327.71 × 373,154.31
  4. Step 4: Simplify right side
    625,381.56x = 350,514,181,623.16
  5. Step 5: Solve for x
    x = 350,514,181,623.16/625,381.56
  6. Step 6: Final answer
    x = 560,480.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.