Home / 1,290,393.66-1,935,465.33-391,843.17

Finding the Fourth Proportional to 1,290,393.66, 1,935,465.33 and 391,843.17

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Solution

The fourth proportional to 1,290,393.66, 1,935,465.33 and 391,843.17 is: 587,726.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,393.66 : 1,935,465.33 = 391,843.17 : x
  2. Step 2: Convert to fraction form
    1,290,393.66/1,935,465.33 = 391,843.17/x
  3. Step 3: Cross multiply
    1,290,393.66x = 1,935,465.33 × 391,843.17
  4. Step 4: Simplify right side
    1,290,393.66x = 758,398,870,332.30
  5. Step 5: Solve for x
    x = 758,398,870,332.30/1,290,393.66
  6. Step 6: Final answer
    x = 587,726.75

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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.