Home / 812,605.52-1,121,023.44-526,217.87

Finding the Fourth Proportional to 812,605.52, 1,121,023.44 and 526,217.87

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Solution

The fourth proportional to 812,605.52, 1,121,023.44 and 526,217.87 is: 725,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,605.52 : 1,121,023.44 = 526,217.87 : x
  2. Step 2: Convert to fraction form
    812,605.52/1,121,023.44 = 526,217.87/x
  3. Step 3: Cross multiply
    812,605.52x = 1,121,023.44 × 526,217.87
  4. Step 4: Simplify right side
    812,605.52x = 589,902,561,211.76
  5. Step 5: Solve for x
    x = 589,902,561,211.76/812,605.52
  6. Step 6: Final answer
    x = 725,939.65

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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.