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Finding the Fourth Proportional to 625,369.20, 938,514.60 and 251,660.40

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Solution

The fourth proportional to 625,369.20, 938,514.60 and 251,660.40 is: 377,676.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,369.20 : 938,514.60 = 251,660.40 : x
  2. Step 2: Convert to fraction form
    625,369.20/938,514.60 = 251,660.40/x
  3. Step 3: Cross multiply
    625,369.20x = 938,514.60 × 251,660.40
  4. Step 4: Simplify right side
    625,369.20x = 236,186,959,641.84
  5. Step 5: Solve for x
    x = 236,186,959,641.84/625,369.20
  6. Step 6: Final answer
    x = 377,676.03

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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.