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Finding the Fourth Proportional to 625,158.88, 862,714.47 and 338,676.91

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Solution

The fourth proportional to 625,158.88, 862,714.47 and 338,676.91 is: 467,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,158.88 : 862,714.47 = 338,676.91 : x
  2. Step 2: Convert to fraction form
    625,158.88/862,714.47 = 338,676.91/x
  3. Step 3: Cross multiply
    625,158.88x = 862,714.47 × 338,676.91
  4. Step 4: Simplify right side
    625,158.88x = 292,181,470,911.89
  5. Step 5: Solve for x
    x = 292,181,470,911.89/625,158.88
  6. Step 6: Final answer
    x = 467,371.54

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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.