Home / 527,887.20-791,823.60-172,912.80

Finding the Fourth Proportional to 527,887.20, 791,823.60 and 172,912.80

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Solution

The fourth proportional to 527,887.20, 791,823.60 and 172,912.80 is: 259,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,887.20 : 791,823.60 = 172,912.80 : x
  2. Step 2: Convert to fraction form
    527,887.20/791,823.60 = 172,912.80/x
  3. Step 3: Cross multiply
    527,887.20x = 791,823.60 × 172,912.80
  4. Step 4: Simplify right side
    527,887.20x = 136,916,435,782.08
  5. Step 5: Solve for x
    x = 136,916,435,782.08/527,887.20
  6. Step 6: Final answer
    x = 259,366.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.