Home / 526,974.70-727,226.85-285,257.20

Finding the Fourth Proportional to 526,974.70, 727,226.85 and 285,257.20

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Solution

The fourth proportional to 526,974.70, 727,226.85 and 285,257.20 is: 393,655.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,974.70 : 727,226.85 = 285,257.20 : x
  2. Step 2: Convert to fraction form
    526,974.70/727,226.85 = 285,257.20/x
  3. Step 3: Cross multiply
    526,974.70x = 727,226.85 × 285,257.20
  4. Step 4: Simplify right side
    526,974.70x = 207,446,694,995.82
  5. Step 5: Solve for x
    x = 207,446,694,995.82/526,974.70
  6. Step 6: Final answer
    x = 393,655.89

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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.