Home / 1,325,083.52-1,828,853.52-781,186.88

Finding the Fourth Proportional to 1,325,083.52, 1,828,853.52 and 781,186.88

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Solution

The fourth proportional to 1,325,083.52, 1,828,853.52 and 781,186.88 is: 1,078,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,083.52 : 1,828,853.52 = 781,186.88 : x
  2. Step 2: Convert to fraction form
    1,325,083.52/1,828,853.52 = 781,186.88/x
  3. Step 3: Cross multiply
    1,325,083.52x = 1,828,853.52 × 781,186.88
  4. Step 4: Simplify right side
    1,325,083.52x = 1,428,676,375,265.82
  5. Step 5: Solve for x
    x = 1,428,676,375,265.82/1,325,083.52
  6. Step 6: Final answer
    x = 1,078,178.36

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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.