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Finding the Fourth Proportional to 674,515.53, 930,833.86 and 368,591.92

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Solution

The fourth proportional to 674,515.53, 930,833.86 and 368,591.92 is: 508,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,515.53 : 930,833.86 = 368,591.92 : x
  2. Step 2: Convert to fraction form
    674,515.53/930,833.86 = 368,591.92/x
  3. Step 3: Cross multiply
    674,515.53x = 930,833.86 × 368,591.92
  4. Step 4: Simplify right side
    674,515.53x = 343,097,839,658.41
  5. Step 5: Solve for x
    x = 343,097,839,658.41/674,515.53
  6. Step 6: Final answer
    x = 508,658.18

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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.