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Finding the Fourth Proportional to 330,934, 456,654.36 and 187,648.24

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Solution

The fourth proportional to 330,934, 456,654.36 and 187,648.24 is: 258,934.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,934 : 456,654.36 = 187,648.24 : x
  2. Step 2: Convert to fraction form
    330,934/456,654.36 = 187,648.24/x
  3. Step 3: Cross multiply
    330,934x = 456,654.36 × 187,648.24
  4. Step 4: Simplify right side
    330,934x = 85,690,386,942.33
  5. Step 5: Solve for x
    x = 85,690,386,942.33/330,934
  6. Step 6: Final answer
    x = 258,934.97

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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.