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Finding the Fourth Proportional to 526,238.66, 726,208.76 and 284,520.65

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Solution

The fourth proportional to 526,238.66, 726,208.76 and 284,520.65 is: 392,638.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,238.66 : 726,208.76 = 284,520.65 : x
  2. Step 2: Convert to fraction form
    526,238.66/726,208.76 = 284,520.65/x
  3. Step 3: Cross multiply
    526,238.66x = 726,208.76 × 284,520.65
  4. Step 4: Simplify right side
    526,238.66x = 206,621,383,377.25
  5. Step 5: Solve for x
    x = 206,621,383,377.25/526,238.66
  6. Step 6: Final answer
    x = 392,638.17

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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.