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Finding the Fourth Proportional to 366,919.10, 550,378.65 and 156,578.30

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Solution

The fourth proportional to 366,919.10, 550,378.65 and 156,578.30 is: 234,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,919.10 : 550,378.65 = 156,578.30 : x
  2. Step 2: Convert to fraction form
    366,919.10/550,378.65 = 156,578.30/x
  3. Step 3: Cross multiply
    366,919.10x = 550,378.65 × 156,578.30
  4. Step 4: Simplify right side
    366,919.10x = 86,177,353,373.30
  5. Step 5: Solve for x
    x = 86,177,353,373.30/366,919.10
  6. Step 6: Final answer
    x = 234,867.45

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Similar ratio
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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.