Home / 527,261.95-727,612.50-285,542.56

Finding the Fourth Proportional to 527,261.95, 727,612.50 and 285,542.56

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Solution

The fourth proportional to 527,261.95, 727,612.50 and 285,542.56 is: 394,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,261.95 : 727,612.50 = 285,542.56 : x
  2. Step 2: Convert to fraction form
    527,261.95/727,612.50 = 285,542.56/x
  3. Step 3: Cross multiply
    527,261.95x = 727,612.50 × 285,542.56
  4. Step 4: Simplify right side
    527,261.95x = 207,764,334,510.29
  5. Step 5: Solve for x
    x = 207,764,334,510.29/527,261.95
  6. Step 6: Final answer
    x = 394,043.86

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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.