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Finding the Fourth Proportional to 526,717.26, 726,867.81 and 285,000.30

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Solution

The fourth proportional to 526,717.26, 726,867.81 and 285,000.30 is: 393,299.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,717.26 : 726,867.81 = 285,000.30 : x
  2. Step 2: Convert to fraction form
    526,717.26/726,867.81 = 285,000.30/x
  3. Step 3: Cross multiply
    526,717.26x = 726,867.81 × 285,000.30
  4. Step 4: Simplify right side
    526,717.26x = 207,157,543,910.34
  5. Step 5: Solve for x
    x = 207,157,543,910.34/526,717.26
  6. Step 6: Final answer
    x = 393,299.33

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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.