Home / 638,203.46-957,419.02-211,764.85

Finding the Fourth Proportional to 638,203.46, 957,419.02 and 211,764.85

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Solution

The fourth proportional to 638,203.46, 957,419.02 and 211,764.85 is: 317,685.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,203.46 : 957,419.02 = 211,764.85 : x
  2. Step 2: Convert to fraction form
    638,203.46/957,419.02 = 211,764.85/x
  3. Step 3: Cross multiply
    638,203.46x = 957,419.02 × 211,764.85
  4. Step 4: Simplify right side
    638,203.46x = 202,747,693,028.61
  5. Step 5: Solve for x
    x = 202,747,693,028.61/638,203.46
  6. Step 6: Final answer
    x = 317,685.04

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Double scale
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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.