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Finding the Fourth Proportional to 488,625.40, 732,354.90 and 204,315.40

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Solution

The fourth proportional to 488,625.40, 732,354.90 and 204,315.40 is: 306,229.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,625.40 : 732,354.90 = 204,315.40 : x
  2. Step 2: Convert to fraction form
    488,625.40/732,354.90 = 204,315.40/x
  3. Step 3: Cross multiply
    488,625.40x = 732,354.90 × 204,315.40
  4. Step 4: Simplify right side
    488,625.40x = 149,631,384,335.46
  5. Step 5: Solve for x
    x = 149,631,384,335.46/488,625.40
  6. Step 6: Final answer
    x = 306,229.24

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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.