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Finding the Fourth Proportional to 526,798.87, 726,987.56 and 285,086.46

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Solution

The fourth proportional to 526,798.87, 726,987.56 and 285,086.46 is: 393,422.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,798.87 : 726,987.56 = 285,086.46 : x
  2. Step 2: Convert to fraction form
    526,798.87/726,987.56 = 285,086.46/x
  3. Step 3: Cross multiply
    526,798.87x = 726,987.56 × 285,086.46
  4. Step 4: Simplify right side
    526,798.87x = 207,254,309,944.44
  5. Step 5: Solve for x
    x = 207,254,309,944.44/526,798.87
  6. Step 6: Final answer
    x = 393,422.09

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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.