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Finding the Fourth Proportional to 527,185.58, 727,519.56 and 285,468.17

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Solution

The fourth proportional to 527,185.58, 727,519.56 and 285,468.17 is: 393,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,185.58 : 727,519.56 = 285,468.17 : x
  2. Step 2: Convert to fraction form
    527,185.58/727,519.56 = 285,468.17/x
  3. Step 3: Cross multiply
    527,185.58x = 727,519.56 × 285,468.17
  4. Step 4: Simplify right side
    527,185.58x = 207,683,677,765.13
  5. Step 5: Solve for x
    x = 207,683,677,765.13/527,185.58
  6. Step 6: Final answer
    x = 393,947.95

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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.