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Finding the Fourth Proportional to 579,467.20, 869,200.80 and 529,700.80

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Solution

The fourth proportional to 579,467.20, 869,200.80 and 529,700.80 is: 794,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,467.20 : 869,200.80 = 529,700.80 : x
  2. Step 2: Convert to fraction form
    579,467.20/869,200.80 = 529,700.80/x
  3. Step 3: Cross multiply
    579,467.20x = 869,200.80 × 529,700.80
  4. Step 4: Simplify right side
    579,467.20x = 460,416,359,120.64
  5. Step 5: Solve for x
    x = 460,416,359,120.64/579,467.20
  6. Step 6: Final answer
    x = 794,551.20

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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.