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Finding the Fourth Proportional to 473,056.80, 709,585.20 and 449,728.80

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Solution

The fourth proportional to 473,056.80, 709,585.20 and 449,728.80 is: 674,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,056.80 : 709,585.20 = 449,728.80 : x
  2. Step 2: Convert to fraction form
    473,056.80/709,585.20 = 449,728.80/x
  3. Step 3: Cross multiply
    473,056.80x = 709,585.20 × 449,728.80
  4. Step 4: Simplify right side
    473,056.80x = 319,120,900,493.76
  5. Step 5: Solve for x
    x = 319,120,900,493.76/473,056.80
  6. Step 6: Final answer
    x = 674,593.20

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Similar ratio
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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.