Home / 812,036.11-1,120,581.24-449,460.67

Finding the Fourth Proportional to 812,036.11, 1,120,581.24 and 449,460.67

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Solution

The fourth proportional to 812,036.11, 1,120,581.24 and 449,460.67 is: 620,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,036.11 : 1,120,581.24 = 449,460.67 : x
  2. Step 2: Convert to fraction form
    812,036.11/1,120,581.24 = 449,460.67/x
  3. Step 3: Cross multiply
    812,036.11x = 1,120,581.24 × 449,460.67
  4. Step 4: Simplify right side
    812,036.11x = 503,657,194,919.83
  5. Step 5: Solve for x
    x = 503,657,194,919.83/812,036.11
  6. Step 6: Final answer
    x = 620,239.90

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Double scale
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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.