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Finding the Fourth Proportional to 437,091.59, 655,730.64 and 247,642.72

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Solution

The fourth proportional to 437,091.59, 655,730.64 and 247,642.72 is: 371,516.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,091.59 : 655,730.64 = 247,642.72 : x
  2. Step 2: Convert to fraction form
    437,091.59/655,730.64 = 247,642.72/x
  3. Step 3: Cross multiply
    437,091.59x = 655,730.64 × 247,642.72
  4. Step 4: Simplify right side
    437,091.59x = 162,386,917,637.61
  5. Step 5: Solve for x
    x = 162,386,917,637.61/437,091.59
  6. Step 6: Final answer
    x = 371,516.91

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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.