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Finding the Fourth Proportional to 625,663.80, 938,714.40 and 270,932.40

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Solution

The fourth proportional to 625,663.80, 938,714.40 and 270,932.40 is: 406,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,663.80 : 938,714.40 = 270,932.40 : x
  2. Step 2: Convert to fraction form
    625,663.80/938,714.40 = 270,932.40/x
  3. Step 3: Cross multiply
    625,663.80x = 938,714.40 × 270,932.40
  4. Step 4: Simplify right side
    625,663.80x = 254,328,145,306.56
  5. Step 5: Solve for x
    x = 254,328,145,306.56/625,663.80
  6. Step 6: Final answer
    x = 406,493.30

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1.5x scale

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.