Home / 527,801.40-791,695.26-128,442.42

Finding the Fourth Proportional to 527,801.40, 791,695.26 and 128,442.42

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Solution

The fourth proportional to 527,801.40, 791,695.26 and 128,442.42 is: 192,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,801.40 : 791,695.26 = 128,442.42 : x
  2. Step 2: Convert to fraction form
    527,801.40/791,695.26 = 128,442.42/x
  3. Step 3: Cross multiply
    527,801.40x = 791,695.26 × 128,442.42
  4. Step 4: Simplify right side
    527,801.40x = 101,687,255,096.93
  5. Step 5: Solve for x
    x = 101,687,255,096.93/527,801.40
  6. Step 6: Final answer
    x = 192,661.97

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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.