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Finding the Fourth Proportional to 284,863.88, 392,212.32 and 250,849.28

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Solution

The fourth proportional to 284,863.88, 392,212.32 and 250,849.28 is: 345,379.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,863.88 : 392,212.32 = 250,849.28 : x
  2. Step 2: Convert to fraction form
    284,863.88/392,212.32 = 250,849.28/x
  3. Step 3: Cross multiply
    284,863.88x = 392,212.32 × 250,849.28
  4. Step 4: Simplify right side
    284,863.88x = 98,386,178,079.13
  5. Step 5: Solve for x
    x = 98,386,178,079.13/284,863.88
  6. Step 6: Final answer
    x = 345,379.62

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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.