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Finding the Fourth Proportional to 587,471.80, 881,207.70 and 547,814.20

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Solution

The fourth proportional to 587,471.80, 881,207.70 and 547,814.20 is: 821,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,471.80 : 881,207.70 = 547,814.20 : x
  2. Step 2: Convert to fraction form
    587,471.80/881,207.70 = 547,814.20/x
  3. Step 3: Cross multiply
    587,471.80x = 881,207.70 × 547,814.20
  4. Step 4: Simplify right side
    587,471.80x = 482,738,091,209.34
  5. Step 5: Solve for x
    x = 482,738,091,209.34/587,471.80
  6. Step 6: Final answer
    x = 821,721.30

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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.