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Finding the Fourth Proportional to 445,638.60, 668,544.30 and 224,022.60

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Solution

The fourth proportional to 445,638.60, 668,544.30 and 224,022.60 is: 336,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,638.60 : 668,544.30 = 224,022.60 : x
  2. Step 2: Convert to fraction form
    445,638.60/668,544.30 = 224,022.60/x
  3. Step 3: Cross multiply
    445,638.60x = 668,544.30 × 224,022.60
  4. Step 4: Simplify right side
    445,638.60x = 149,769,032,301.18
  5. Step 5: Solve for x
    x = 149,769,032,301.18/445,638.60
  6. Step 6: Final answer
    x = 336,077.33

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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.