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Finding the Fourth Proportional to 492,972.32, 739,458.48 and 177,421.16

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Solution

The fourth proportional to 492,972.32, 739,458.48 and 177,421.16 is: 266,131.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,972.32 : 739,458.48 = 177,421.16 : x
  2. Step 2: Convert to fraction form
    492,972.32/739,458.48 = 177,421.16/x
  3. Step 3: Cross multiply
    492,972.32x = 739,458.48 × 177,421.16
  4. Step 4: Simplify right side
    492,972.32x = 131,195,581,293.44
  5. Step 5: Solve for x
    x = 131,195,581,293.44/492,972.32
  6. Step 6: Final answer
    x = 266,131.74

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Similar ratio
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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.