Home / 638,458.04-957,687.06-217,737.56

Finding the Fourth Proportional to 638,458.04, 957,687.06 and 217,737.56

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Solution

The fourth proportional to 638,458.04, 957,687.06 and 217,737.56 is: 326,606.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,458.04 : 957,687.06 = 217,737.56 : x
  2. Step 2: Convert to fraction form
    638,458.04/957,687.06 = 217,737.56/x
  3. Step 3: Cross multiply
    638,458.04x = 957,687.06 × 217,737.56
  4. Step 4: Simplify right side
    638,458.04x = 208,524,443,687.97
  5. Step 5: Solve for x
    x = 208,524,443,687.97/638,458.04
  6. Step 6: Final answer
    x = 326,606.34

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Double scale
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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.