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Finding the Fourth Proportional to 527,257.08, 790,722 and 190,253.97

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Solution

The fourth proportional to 527,257.08, 790,722 and 190,253.97 is: 285,321.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,257.08 : 790,722 = 190,253.97 : x
  2. Step 2: Convert to fraction form
    527,257.08/790,722 = 190,253.97/x
  3. Step 3: Cross multiply
    527,257.08x = 790,722 × 190,253.97
  4. Step 4: Simplify right side
    527,257.08x = 150,437,999,666.34
  5. Step 5: Solve for x
    x = 150,437,999,666.34/527,257.08
  6. Step 6: Final answer
    x = 285,321.91

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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.