Home / 1,277,265.38-1,915,898.07-519,519.09

Finding the Fourth Proportional to 1,277,265.38, 1,915,898.07 and 519,519.09

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Solution

The fourth proportional to 1,277,265.38, 1,915,898.07 and 519,519.09 is: 779,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,265.38 : 1,915,898.07 = 519,519.09 : x
  2. Step 2: Convert to fraction form
    1,277,265.38/1,915,898.07 = 519,519.09/x
  3. Step 3: Cross multiply
    1,277,265.38x = 1,915,898.07 × 519,519.09
  4. Step 4: Simplify right side
    1,277,265.38x = 995,345,621,859.16
  5. Step 5: Solve for x
    x = 995,345,621,859.16/1,277,265.38
  6. Step 6: Final answer
    x = 779,278.64

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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.