Home / 527,149.57-727,466.85-285,432.28

Finding the Fourth Proportional to 527,149.57, 727,466.85 and 285,432.28

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Solution

The fourth proportional to 527,149.57, 727,466.85 and 285,432.28 is: 393,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,149.57 : 727,466.85 = 285,432.28 : x
  2. Step 2: Convert to fraction form
    527,149.57/727,466.85 = 285,432.28/x
  3. Step 3: Cross multiply
    527,149.57x = 727,466.85 × 285,432.28
  4. Step 4: Simplify right side
    527,149.57x = 207,642,521,619.92
  5. Step 5: Solve for x
    x = 207,642,521,619.92/527,149.57
  6. Step 6: Final answer
    x = 393,896.79

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1.5x scale

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.