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Finding the Fourth Proportional to 492,354.60, 738,531.90 and 281,844.24

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Solution

The fourth proportional to 492,354.60, 738,531.90 and 281,844.24 is: 422,766.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,354.60 : 738,531.90 = 281,844.24 : x
  2. Step 2: Convert to fraction form
    492,354.60/738,531.90 = 281,844.24/x
  3. Step 3: Cross multiply
    492,354.60x = 738,531.90 × 281,844.24
  4. Step 4: Simplify right side
    492,354.60x = 208,150,962,071.26
  5. Step 5: Solve for x
    x = 208,150,962,071.26/492,354.60
  6. Step 6: Final answer
    x = 422,766.36

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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.