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Finding the Fourth Proportional to 422,392.96, 633,529.92 and 106,830.40

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Solution

The fourth proportional to 422,392.96, 633,529.92 and 106,830.40 is: 160,230.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,392.96 : 633,529.92 = 106,830.40 : x
  2. Step 2: Convert to fraction form
    422,392.96/633,529.92 = 106,830.40/x
  3. Step 3: Cross multiply
    422,392.96x = 633,529.92 × 106,830.40
  4. Step 4: Simplify right side
    422,392.96x = 67,680,254,765.57
  5. Step 5: Solve for x
    x = 67,680,254,765.57/422,392.96
  6. Step 6: Final answer
    x = 160,230.55

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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.