Home / 617,966.10-926,949.15-218,619.90

Finding the Fourth Proportional to 617,966.10, 926,949.15 and 218,619.90

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Solution

The fourth proportional to 617,966.10, 926,949.15 and 218,619.90 is: 327,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,966.10 : 926,949.15 = 218,619.90 : x
  2. Step 2: Convert to fraction form
    617,966.10/926,949.15 = 218,619.90/x
  3. Step 3: Cross multiply
    617,966.10x = 926,949.15 × 218,619.90
  4. Step 4: Simplify right side
    617,966.10x = 202,649,530,478.09
  5. Step 5: Solve for x
    x = 202,649,530,478.09/617,966.10
  6. Step 6: Final answer
    x = 327,929.85

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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.