Home / 819,338.67-1,229,008.01-258,416.91

Finding the Fourth Proportional to 819,338.67, 1,229,008.01 and 258,416.91

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Solution

The fourth proportional to 819,338.67, 1,229,008.01 and 258,416.91 is: 387,625.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,338.67 : 1,229,008.01 = 258,416.91 : x
  2. Step 2: Convert to fraction form
    819,338.67/1,229,008.01 = 258,416.91/x
  3. Step 3: Cross multiply
    819,338.67x = 1,229,008.01 × 258,416.91
  4. Step 4: Simplify right side
    819,338.67x = 317,596,451,017.37
  5. Step 5: Solve for x
    x = 317,596,451,017.37/819,338.67
  6. Step 6: Final answer
    x = 387,625.37

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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.