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Finding the Fourth Proportional to 527,996.64, 791,400 and 261,947.84

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Solution

The fourth proportional to 527,996.64, 791,400 and 261,947.84 is: 392,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,996.64 : 791,400 = 261,947.84 : x
  2. Step 2: Convert to fraction form
    527,996.64/791,400 = 261,947.84/x
  3. Step 3: Cross multiply
    527,996.64x = 791,400 × 261,947.84
  4. Step 4: Simplify right side
    527,996.64x = 207,305,520,576
  5. Step 5: Solve for x
    x = 207,305,520,576/527,996.64
  6. Step 6: Final answer
    x = 392,626.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.