Home / 686,154.33-1,029,330.72-259,574.46

Finding the Fourth Proportional to 686,154.33, 1,029,330.72 and 259,574.46

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Solution

The fourth proportional to 686,154.33, 1,029,330.72 and 259,574.46 is: 389,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,154.33 : 1,029,330.72 = 259,574.46 : x
  2. Step 2: Convert to fraction form
    686,154.33/1,029,330.72 = 259,574.46/x
  3. Step 3: Cross multiply
    686,154.33x = 1,029,330.72 × 259,574.46
  4. Step 4: Simplify right side
    686,154.33x = 267,187,965,805.41
  5. Step 5: Solve for x
    x = 267,187,965,805.41/686,154.33
  6. Step 6: Final answer
    x = 389,399.23

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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.