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Finding the Fourth Proportional to 526,793.91, 726,972.81 and 285,076.35

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Solution

The fourth proportional to 526,793.91, 726,972.81 and 285,076.35 is: 393,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,793.91 : 726,972.81 = 285,076.35 : x
  2. Step 2: Convert to fraction form
    526,793.91/726,972.81 = 285,076.35/x
  3. Step 3: Cross multiply
    526,793.91x = 726,972.81 × 285,076.35
  4. Step 4: Simplify right side
    526,793.91x = 207,242,755,224.04
  5. Step 5: Solve for x
    x = 207,242,755,224.04/526,793.91
  6. Step 6: Final answer
    x = 393,403.86

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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.