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Finding the Fourth Proportional to 419,625.92, 629,987.56 and 249,158.72

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Solution

The fourth proportional to 419,625.92, 629,987.56 and 249,158.72 is: 374,063.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,625.92 : 629,987.56 = 249,158.72 : x
  2. Step 2: Convert to fraction form
    419,625.92/629,987.56 = 249,158.72/x
  3. Step 3: Cross multiply
    419,625.92x = 629,987.56 × 249,158.72
  4. Step 4: Simplify right side
    419,625.92x = 156,966,894,065.52
  5. Step 5: Solve for x
    x = 156,966,894,065.52/419,625.92
  6. Step 6: Final answer
    x = 374,063.87

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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.