Home / 2,086,934.40-3,129,991.20-666,607.68

Finding the Fourth Proportional to 2,086,934.40, 3,129,991.20 and 666,607.68

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Solution

The fourth proportional to 2,086,934.40, 3,129,991.20 and 666,607.68 is: 999,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,934.40 : 3,129,991.20 = 666,607.68 : x
  2. Step 2: Convert to fraction form
    2,086,934.40/3,129,991.20 = 666,607.68/x
  3. Step 3: Cross multiply
    2,086,934.40x = 3,129,991.20 × 666,607.68
  4. Step 4: Simplify right side
    2,086,934.40x = 2,086,476,172,252.42
  5. Step 5: Solve for x
    x = 2,086,476,172,252.42/2,086,934.40
  6. Step 6: Final answer
    x = 999,780.43

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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.