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Finding the Fourth Proportional to 527,710.44, 791,566.32 and 128,348.45

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Solution

The fourth proportional to 527,710.44, 791,566.32 and 128,348.45 is: 192,522.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,710.44 : 791,566.32 = 128,348.45 : x
  2. Step 2: Convert to fraction form
    527,710.44/791,566.32 = 128,348.45/x
  3. Step 3: Cross multiply
    527,710.44x = 791,566.32 × 128,348.45
  4. Step 4: Simplify right side
    527,710.44x = 101,596,309,736.05
  5. Step 5: Solve for x
    x = 101,596,309,736.05/527,710.44
  6. Step 6: Final answer
    x = 192,522.83

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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.