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Finding the Fourth Proportional to 488,372.40, 731,975.40 and 204,062.40

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Solution

The fourth proportional to 488,372.40, 731,975.40 and 204,062.40 is: 305,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,372.40 : 731,975.40 = 204,062.40 : x
  2. Step 2: Convert to fraction form
    488,372.40/731,975.40 = 204,062.40/x
  3. Step 3: Cross multiply
    488,372.40x = 731,975.40 × 204,062.40
  4. Step 4: Simplify right side
    488,372.40x = 149,368,656,864.96
  5. Step 5: Solve for x
    x = 149,368,656,864.96/488,372.40
  6. Step 6: Final answer
    x = 305,849.91

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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.