Home / 1,215,950.33-1,677,982.28-664,641.42

Finding the Fourth Proportional to 1,215,950.33, 1,677,982.28 and 664,641.42

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Solution

The fourth proportional to 1,215,950.33, 1,677,982.28 and 664,641.42 is: 917,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,950.33 : 1,677,982.28 = 664,641.42 : x
  2. Step 2: Convert to fraction form
    1,215,950.33/1,677,982.28 = 664,641.42/x
  3. Step 3: Cross multiply
    1,215,950.33x = 1,677,982.28 × 664,641.42
  4. Step 4: Simplify right side
    1,215,950.33x = 1,115,256,521,990.83
  5. Step 5: Solve for x
    x = 1,115,256,521,990.83/1,215,950.33
  6. Step 6: Final answer
    x = 917,189.21

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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.