Home / 825,488.64-1,138,691.66-519,079.95

Finding the Fourth Proportional to 825,488.64, 1,138,691.66 and 519,079.95

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Solution

The fourth proportional to 825,488.64, 1,138,691.66 and 519,079.95 is: 716,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,488.64 : 1,138,691.66 = 519,079.95 : x
  2. Step 2: Convert to fraction form
    825,488.64/1,138,691.66 = 519,079.95/x
  3. Step 3: Cross multiply
    825,488.64x = 1,138,691.66 × 519,079.95
  4. Step 4: Simplify right side
    825,488.64x = 591,072,007,342.82
  5. Step 5: Solve for x
    x = 591,072,007,342.82/825,488.64
  6. Step 6: Final answer
    x = 716,026.82

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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.