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Finding the Fourth Proportional to 492,426.72, 738,640.08 and 118,449.72

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Solution

The fourth proportional to 492,426.72, 738,640.08 and 118,449.72 is: 177,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,426.72 : 738,640.08 = 118,449.72 : x
  2. Step 2: Convert to fraction form
    492,426.72/738,640.08 = 118,449.72/x
  3. Step 3: Cross multiply
    492,426.72x = 738,640.08 × 118,449.72
  4. Step 4: Simplify right side
    492,426.72x = 87,491,710,656.78
  5. Step 5: Solve for x
    x = 87,491,710,656.78/492,426.72
  6. Step 6: Final answer
    x = 177,674.58

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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.