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Finding the Fourth Proportional to 396,605.92, 594,685.31 and 130,294.93

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Solution

The fourth proportional to 396,605.92, 594,685.31 and 130,294.93 is: 195,368.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,605.92 : 594,685.31 = 130,294.93 : x
  2. Step 2: Convert to fraction form
    396,605.92/594,685.31 = 130,294.93/x
  3. Step 3: Cross multiply
    396,605.92x = 594,685.31 × 130,294.93
  4. Step 4: Simplify right side
    396,605.92x = 77,484,480,838.48
  5. Step 5: Solve for x
    x = 77,484,480,838.48/396,605.92
  6. Step 6: Final answer
    x = 195,368.95

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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.