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Finding the Fourth Proportional to 882,153.92, 1,323,309.82 and 342,397.56

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Solution

The fourth proportional to 882,153.92, 1,323,309.82 and 342,397.56 is: 513,626.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,153.92 : 1,323,309.82 = 342,397.56 : x
  2. Step 2: Convert to fraction form
    882,153.92/1,323,309.82 = 342,397.56/x
  3. Step 3: Cross multiply
    882,153.92x = 1,323,309.82 × 342,397.56
  4. Step 4: Simplify right side
    882,153.92x = 453,098,053,492.04
  5. Step 5: Solve for x
    x = 453,098,053,492.04/882,153.92
  6. Step 6: Final answer
    x = 513,626.98

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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.