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Finding the Fourth Proportional to 492,187.96, 738,373.92 and 338,960.16

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Solution

The fourth proportional to 492,187.96, 738,373.92 and 338,960.16 is: 508,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,187.96 : 738,373.92 = 338,960.16 : x
  2. Step 2: Convert to fraction form
    492,187.96/738,373.92 = 338,960.16/x
  3. Step 3: Cross multiply
    492,187.96x = 738,373.92 × 338,960.16
  4. Step 4: Simplify right side
    492,187.96x = 250,279,342,063.03
  5. Step 5: Solve for x
    x = 250,279,342,063.03/492,187.96
  6. Step 6: Final answer
    x = 508,503.58

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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.