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Finding the Fourth Proportional to 438,730.91, 658,139.57 and 182,510.90

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Solution

The fourth proportional to 438,730.91, 658,139.57 and 182,510.90 is: 273,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,730.91 : 658,139.57 = 182,510.90 : x
  2. Step 2: Convert to fraction form
    438,730.91/658,139.57 = 182,510.90/x
  3. Step 3: Cross multiply
    438,730.91x = 658,139.57 × 182,510.90
  4. Step 4: Simplify right side
    438,730.91x = 120,117,644,333.76
  5. Step 5: Solve for x
    x = 120,117,644,333.76/438,730.91
  6. Step 6: Final answer
    x = 273,784.32

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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.