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Finding the Fourth Proportional to 491,508.45, 736,318.11 and 301,414.49

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Solution

The fourth proportional to 491,508.45, 736,318.11 and 301,414.49 is: 451,542.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,508.45 : 736,318.11 = 301,414.49 : x
  2. Step 2: Convert to fraction form
    491,508.45/736,318.11 = 301,414.49/x
  3. Step 3: Cross multiply
    491,508.45x = 736,318.11 × 301,414.49
  4. Step 4: Simplify right side
    491,508.45x = 221,936,947,813.32
  5. Step 5: Solve for x
    x = 221,936,947,813.32/491,508.45
  6. Step 6: Final answer
    x = 451,542.49

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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.