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Finding the Fourth Proportional to 445,947.40, 615,404.28 and 241,993.12

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Solution

The fourth proportional to 445,947.40, 615,404.28 and 241,993.12 is: 333,948.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,947.40 : 615,404.28 = 241,993.12 : x
  2. Step 2: Convert to fraction form
    445,947.40/615,404.28 = 241,993.12/x
  3. Step 3: Cross multiply
    445,947.40x = 615,404.28 × 241,993.12
  4. Step 4: Simplify right side
    445,947.40x = 148,923,601,778.55
  5. Step 5: Solve for x
    x = 148,923,601,778.55/445,947.40
  6. Step 6: Final answer
    x = 333,948.81

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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.