Home / 526,887.20-727,121.96-322,898.72

Finding the Fourth Proportional to 526,887.20, 727,121.96 and 322,898.72

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Solution

The fourth proportional to 526,887.20, 727,121.96 and 322,898.72 is: 445,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,887.20 : 727,121.96 = 322,898.72 : x
  2. Step 2: Convert to fraction form
    526,887.20/727,121.96 = 322,898.72/x
  3. Step 3: Cross multiply
    526,887.20x = 727,121.96 × 322,898.72
  4. Step 4: Simplify right side
    526,887.20x = 234,786,752,035.02
  5. Step 5: Solve for x
    x = 234,786,752,035.02/526,887.20
  6. Step 6: Final answer
    x = 445,611.04

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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.