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Finding the Fourth Proportional to 353,462.71, 487,763.92 and 192,318.38

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Solution

The fourth proportional to 353,462.71, 487,763.92 and 192,318.38 is: 265,391.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,462.71 : 487,763.92 = 192,318.38 : x
  2. Step 2: Convert to fraction form
    353,462.71/487,763.92 = 192,318.38/x
  3. Step 3: Cross multiply
    353,462.71x = 487,763.92 × 192,318.38
  4. Step 4: Simplify right side
    353,462.71x = 93,805,966,916.85
  5. Step 5: Solve for x
    x = 93,805,966,916.85/353,462.71
  6. Step 6: Final answer
    x = 265,391.41

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1.5x scale

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.