Home / 527,158.50-727,479.12-285,441.24

Finding the Fourth Proportional to 527,158.50, 727,479.12 and 285,441.24

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Solution

The fourth proportional to 527,158.50, 727,479.12 and 285,441.24 is: 393,909.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,158.50 : 727,479.12 = 285,441.24 : x
  2. Step 2: Convert to fraction form
    527,158.50/727,479.12 = 285,441.24/x
  3. Step 3: Cross multiply
    527,158.50x = 727,479.12 × 285,441.24
  4. Step 4: Simplify right side
    527,158.50x = 207,652,542,086.91
  5. Step 5: Solve for x
    x = 207,652,542,086.91/527,158.50
  6. Step 6: Final answer
    x = 393,909.12

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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.