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Finding the Fourth Proportional to 441,168.20, 661,429.72 and 141,478.20

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Solution

The fourth proportional to 441,168.20, 661,429.72 and 141,478.20 is: 212,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,168.20 : 661,429.72 = 141,478.20 : x
  2. Step 2: Convert to fraction form
    441,168.20/661,429.72 = 141,478.20/x
  3. Step 3: Cross multiply
    441,168.20x = 661,429.72 × 141,478.20
  4. Step 4: Simplify right side
    441,168.20x = 93,577,886,212.10
  5. Step 5: Solve for x
    x = 93,577,886,212.10/441,168.20
  6. Step 6: Final answer
    x = 212,113.85

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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.