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Finding the Fourth Proportional to 573,131.20, 857,655.60 and 499,064.80

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Solution

The fourth proportional to 573,131.20, 857,655.60 and 499,064.80 is: 746,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,131.20 : 857,655.60 = 499,064.80 : x
  2. Step 2: Convert to fraction form
    573,131.20/857,655.60 = 499,064.80/x
  3. Step 3: Cross multiply
    573,131.20x = 857,655.60 × 499,064.80
  4. Step 4: Simplify right side
    573,131.20x = 428,025,720,482.88
  5. Step 5: Solve for x
    x = 428,025,720,482.88/573,131.20
  6. Step 6: Final answer
    x = 746,819.79

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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.