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Finding the Fourth Proportional to 323,444.49, 482,892.51 and 247,143.71

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Solution

The fourth proportional to 323,444.49, 482,892.51 and 247,143.71 is: 368,977.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,444.49 : 482,892.51 = 247,143.71 : x
  2. Step 2: Convert to fraction form
    323,444.49/482,892.51 = 247,143.71/x
  3. Step 3: Cross multiply
    323,444.49x = 482,892.51 × 247,143.71
  4. Step 4: Simplify right side
    323,444.49x = 119,343,844,038.15
  5. Step 5: Solve for x
    x = 119,343,844,038.15/323,444.49
  6. Step 6: Final answer
    x = 368,977.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.