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Finding the Fourth Proportional to 532,720.80, 798,206.40 and 443,491.20

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Solution

The fourth proportional to 532,720.80, 798,206.40 and 443,491.20 is: 664,508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,720.80 : 798,206.40 = 443,491.20 : x
  2. Step 2: Convert to fraction form
    532,720.80/798,206.40 = 443,491.20/x
  3. Step 3: Cross multiply
    532,720.80x = 798,206.40 × 443,491.20
  4. Step 4: Simplify right side
    532,720.80x = 353,997,514,183.68
  5. Step 5: Solve for x
    x = 353,997,514,183.68/532,720.80
  6. Step 6: Final answer
    x = 664,508.53

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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.