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Finding the Fourth Proportional to 447,773.40, 671,660.10 and 329,675.40

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Solution

The fourth proportional to 447,773.40, 671,660.10 and 329,675.40 is: 494,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,773.40 : 671,660.10 = 329,675.40 : x
  2. Step 2: Convert to fraction form
    447,773.40/671,660.10 = 329,675.40/x
  3. Step 3: Cross multiply
    447,773.40x = 671,660.10 × 329,675.40
  4. Step 4: Simplify right side
    447,773.40x = 221,429,812,131.54
  5. Step 5: Solve for x
    x = 221,429,812,131.54/447,773.40
  6. Step 6: Final answer
    x = 494,513.10

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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.