Home / 1,277,392-1,916,088.31-519,645.71

Finding the Fourth Proportional to 1,277,392, 1,916,088.31 and 519,645.71

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Solution

The fourth proportional to 1,277,392, 1,916,088.31 and 519,645.71 is: 779,468.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,392 : 1,916,088.31 = 519,645.71 : x
  2. Step 2: Convert to fraction form
    1,277,392/1,916,088.31 = 519,645.71/x
  3. Step 3: Cross multiply
    1,277,392x = 1,916,088.31 × 519,645.71
  4. Step 4: Simplify right side
    1,277,392x = 995,687,070,272.65
  5. Step 5: Solve for x
    x = 995,687,070,272.65/1,277,392
  6. Step 6: Final answer
    x = 779,468.69

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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.