Home / 993,398.72-1,370,919.92-611,645.76

Finding the Fourth Proportional to 993,398.72, 1,370,919.92 and 611,645.76

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Solution

The fourth proportional to 993,398.72, 1,370,919.92 and 611,645.76 is: 844,089.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,398.72 : 1,370,919.92 = 611,645.76 : x
  2. Step 2: Convert to fraction form
    993,398.72/1,370,919.92 = 611,645.76/x
  3. Step 3: Cross multiply
    993,398.72x = 1,370,919.92 × 611,645.76
  4. Step 4: Simplify right side
    993,398.72x = 838,517,356,367.54
  5. Step 5: Solve for x
    x = 838,517,356,367.54/993,398.72
  6. Step 6: Final answer
    x = 844,089.43

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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.