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Finding the Fourth Proportional to 439,691.82, 659,438.10 and 223,331.24

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Solution

The fourth proportional to 439,691.82, 659,438.10 and 223,331.24 is: 334,946.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,691.82 : 659,438.10 = 223,331.24 : x
  2. Step 2: Convert to fraction form
    439,691.82/659,438.10 = 223,331.24/x
  3. Step 3: Cross multiply
    439,691.82x = 659,438.10 × 223,331.24
  4. Step 4: Simplify right side
    439,691.82x = 147,273,125,279.05
  5. Step 5: Solve for x
    x = 147,273,125,279.05/439,691.82
  6. Step 6: Final answer
    x = 334,946.25

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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.