Home / 527,915.10-791,872.65-128,552.70

Finding the Fourth Proportional to 527,915.10, 791,872.65 and 128,552.70

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Solution

The fourth proportional to 527,915.10, 791,872.65 and 128,552.70 is: 192,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,915.10 : 791,872.65 = 128,552.70 : x
  2. Step 2: Convert to fraction form
    527,915.10/791,872.65 = 128,552.70/x
  3. Step 3: Cross multiply
    527,915.10x = 791,872.65 × 128,552.70
  4. Step 4: Simplify right side
    527,915.10x = 101,797,367,213.66
  5. Step 5: Solve for x
    x = 101,797,367,213.66/527,915.10
  6. Step 6: Final answer
    x = 192,829.05

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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.