Home / 527,356.16-791,039.24-128,000.54

Finding the Fourth Proportional to 527,356.16, 791,039.24 and 128,000.54

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Solution

The fourth proportional to 527,356.16, 791,039.24 and 128,000.54 is: 192,002.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,356.16 : 791,039.24 = 128,000.54 : x
  2. Step 2: Convert to fraction form
    527,356.16/791,039.24 = 128,000.54/x
  3. Step 3: Cross multiply
    527,356.16x = 791,039.24 × 128,000.54
  4. Step 4: Simplify right side
    527,356.16x = 101,253,445,285.99
  5. Step 5: Solve for x
    x = 101,253,445,285.99/527,356.16
  6. Step 6: Final answer
    x = 192,002.02

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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.