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Finding the Fourth Proportional to 488,335.90, 731,920.65 and 204,025.90

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Solution

The fourth proportional to 488,335.90, 731,920.65 and 204,025.90 is: 305,795.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,335.90 : 731,920.65 = 204,025.90 : x
  2. Step 2: Convert to fraction form
    488,335.90/731,920.65 = 204,025.90/x
  3. Step 3: Cross multiply
    488,335.90x = 731,920.65 × 204,025.90
  4. Step 4: Simplify right side
    488,335.90x = 149,330,769,344.84
  5. Step 5: Solve for x
    x = 149,330,769,344.84/488,335.90
  6. Step 6: Final answer
    x = 305,795.19

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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.