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Finding the Fourth Proportional to 496,629.80, 746,499.90 and 487,298.60

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Solution

The fourth proportional to 496,629.80, 746,499.90 and 487,298.60 is: 732,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,629.80 : 746,499.90 = 487,298.60 : x
  2. Step 2: Convert to fraction form
    496,629.80/746,499.90 = 487,298.60/x
  3. Step 3: Cross multiply
    496,629.80x = 746,499.90 × 487,298.60
  4. Step 4: Simplify right side
    496,629.80x = 363,768,356,170.14
  5. Step 5: Solve for x
    x = 363,768,356,170.14/496,629.80
  6. Step 6: Final answer
    x = 732,473.88

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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.