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Finding the Fourth Proportional to 499,797.12, 748,140.84 and 271,521.93

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Solution

The fourth proportional to 499,797.12, 748,140.84 and 271,521.93 is: 406,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,797.12 : 748,140.84 = 271,521.93 : x
  2. Step 2: Convert to fraction form
    499,797.12/748,140.84 = 271,521.93/x
  3. Step 3: Cross multiply
    499,797.12x = 748,140.84 × 271,521.93
  4. Step 4: Simplify right side
    499,797.12x = 203,136,644,788.62
  5. Step 5: Solve for x
    x = 203,136,644,788.62/499,797.12
  6. Step 6: Final answer
    x = 406,438.21

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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.