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Finding the Fourth Proportional to 491,086.60, 736,629.90 and 277,635.40

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Solution

The fourth proportional to 491,086.60, 736,629.90 and 277,635.40 is: 416,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,086.60 : 736,629.90 = 277,635.40 : x
  2. Step 2: Convert to fraction form
    491,086.60/736,629.90 = 277,635.40/x
  3. Step 3: Cross multiply
    491,086.60x = 736,629.90 × 277,635.40
  4. Step 4: Simplify right side
    491,086.60x = 204,514,536,938.46
  5. Step 5: Solve for x
    x = 204,514,536,938.46/491,086.60
  6. Step 6: Final answer
    x = 416,453.10

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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.