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Finding the Fourth Proportional to 587,104.80, 879,620.40 and 481,351.20

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Solution

The fourth proportional to 587,104.80, 879,620.40 and 481,351.20 is: 721,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,104.80 : 879,620.40 = 481,351.20 : x
  2. Step 2: Convert to fraction form
    587,104.80/879,620.40 = 481,351.20/x
  3. Step 3: Cross multiply
    587,104.80x = 879,620.40 × 481,351.20
  4. Step 4: Simplify right side
    587,104.80x = 423,406,335,084.48
  5. Step 5: Solve for x
    x = 423,406,335,084.48/587,104.80
  6. Step 6: Final answer
    x = 721,176.76

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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.