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Finding the Fourth Proportional to 496,633.80, 746,505.90 and 487,302.60

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Solution

The fourth proportional to 496,633.80, 746,505.90 and 487,302.60 is: 732,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,633.80 : 746,505.90 = 487,302.60 : x
  2. Step 2: Convert to fraction form
    496,633.80/746,505.90 = 487,302.60/x
  3. Step 3: Cross multiply
    496,633.80x = 746,505.90 × 487,302.60
  4. Step 4: Simplify right side
    496,633.80x = 363,774,265,985.34
  5. Step 5: Solve for x
    x = 363,774,265,985.34/496,633.80
  6. Step 6: Final answer
    x = 732,479.88

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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.