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Finding the Fourth Proportional to 486,675.40, 730,013.06 and 154,251.40

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Solution

The fourth proportional to 486,675.40, 730,013.06 and 154,251.40 is: 231,377.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,675.40 : 730,013.06 = 154,251.40 : x
  2. Step 2: Convert to fraction form
    486,675.40/730,013.06 = 154,251.40/x
  3. Step 3: Cross multiply
    486,675.40x = 730,013.06 × 154,251.40
  4. Step 4: Simplify right side
    486,675.40x = 112,605,536,523.28
  5. Step 5: Solve for x
    x = 112,605,536,523.28/486,675.40
  6. Step 6: Final answer
    x = 231,377.09

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Similar ratio
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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.