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Finding the Fourth Proportional to 493,269.67, 680,713.95 and 266,915.17

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Solution

The fourth proportional to 493,269.67, 680,713.95 and 266,915.17 is: 368,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,269.67 : 680,713.95 = 266,915.17 : x
  2. Step 2: Convert to fraction form
    493,269.67/680,713.95 = 266,915.17/x
  3. Step 3: Cross multiply
    493,269.67x = 680,713.95 × 266,915.17
  4. Step 4: Simplify right side
    493,269.67x = 181,692,879,685.62
  5. Step 5: Solve for x
    x = 181,692,879,685.62/493,269.67
  6. Step 6: Final answer
    x = 368,343.91

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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.