Home / 689,896.01-951,516.20-448,257.12

Finding the Fourth Proportional to 689,896.01, 951,516.20 and 448,257.12

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Solution

The fourth proportional to 689,896.01, 951,516.20 and 448,257.12 is: 618,243.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,896.01 : 951,516.20 = 448,257.12 : x
  2. Step 2: Convert to fraction form
    689,896.01/951,516.20 = 448,257.12/x
  3. Step 3: Cross multiply
    689,896.01x = 951,516.20 × 448,257.12
  4. Step 4: Simplify right side
    689,896.01x = 426,523,906,476.36
  5. Step 5: Solve for x
    x = 426,523,906,476.36/689,896.01
  6. Step 6: Final answer
    x = 618,243.76

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.