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Finding the Fourth Proportional to 674,424.27, 930,694.59 and 368,494.11

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Solution

The fourth proportional to 674,424.27, 930,694.59 and 368,494.11 is: 508,515.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,424.27 : 930,694.59 = 368,494.11 : x
  2. Step 2: Convert to fraction form
    674,424.27/930,694.59 = 368,494.11/x
  3. Step 3: Cross multiply
    674,424.27x = 930,694.59 × 368,494.11
  4. Step 4: Simplify right side
    674,424.27x = 342,955,474,623.87
  5. Step 5: Solve for x
    x = 342,955,474,623.87/674,424.27
  6. Step 6: Final answer
    x = 508,515.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.