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Finding the Fourth Proportional to 303,246.90, 454,979.70 and 292,311.90

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Solution

The fourth proportional to 303,246.90, 454,979.70 and 292,311.90 is: 438,573.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,246.90 : 454,979.70 = 292,311.90 : x
  2. Step 2: Convert to fraction form
    303,246.90/454,979.70 = 292,311.90/x
  3. Step 3: Cross multiply
    303,246.90x = 454,979.70 × 292,311.90
  4. Step 4: Simplify right side
    303,246.90x = 132,995,980,568.43
  5. Step 5: Solve for x
    x = 132,995,980,568.43/303,246.90
  6. Step 6: Final answer
    x = 438,573.26

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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.