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Finding the Fourth Proportional to 295,299.20, 407,371.20 and 193,279.76

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Solution

The fourth proportional to 295,299.20, 407,371.20 and 193,279.76 is: 266,633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,299.20 : 407,371.20 = 193,279.76 : x
  2. Step 2: Convert to fraction form
    295,299.20/407,371.20 = 193,279.76/x
  3. Step 3: Cross multiply
    295,299.20x = 407,371.20 × 193,279.76
  4. Step 4: Simplify right side
    295,299.20x = 78,736,607,766.91
  5. Step 5: Solve for x
    x = 78,736,607,766.91/295,299.20
  6. Step 6: Final answer
    x = 266,633.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.