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Finding the Fourth Proportional to 527,198.33, 727,532.39 and 285,480.89

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Solution

The fourth proportional to 527,198.33, 727,532.39 and 285,480.89 is: 393,962.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,198.33 : 727,532.39 = 285,480.89 : x
  2. Step 2: Convert to fraction form
    527,198.33/727,532.39 = 285,480.89/x
  3. Step 3: Cross multiply
    527,198.33x = 727,532.39 × 285,480.89
  4. Step 4: Simplify right side
    527,198.33x = 207,696,594,201.03
  5. Step 5: Solve for x
    x = 207,696,594,201.03/527,198.33
  6. Step 6: Final answer
    x = 393,962.92

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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.