Home / 1,215,890.27-1,677,935.14-664,606.73

Finding the Fourth Proportional to 1,215,890.27, 1,677,935.14 and 664,606.73

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Solution

The fourth proportional to 1,215,890.27, 1,677,935.14 and 664,606.73 is: 917,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,890.27 : 1,677,935.14 = 664,606.73 : x
  2. Step 2: Convert to fraction form
    1,215,890.27/1,677,935.14 = 664,606.73/x
  3. Step 3: Cross multiply
    1,215,890.27x = 1,677,935.14 × 664,606.73
  4. Step 4: Simplify right side
    1,215,890.27x = 1,115,166,990,253.57
  5. Step 5: Solve for x
    x = 1,115,166,990,253.57/1,215,890.27
  6. Step 6: Final answer
    x = 917,160.88

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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.