Home / 1,276,830.72-1,915,799.04-685,163.52

Finding the Fourth Proportional to 1,276,830.72, 1,915,799.04 and 685,163.52

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Solution

The fourth proportional to 1,276,830.72, 1,915,799.04 and 685,163.52 is: 1,028,042.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,830.72 : 1,915,799.04 = 685,163.52 : x
  2. Step 2: Convert to fraction form
    1,276,830.72/1,915,799.04 = 685,163.52/x
  3. Step 3: Cross multiply
    1,276,830.72x = 1,915,799.04 × 685,163.52
  4. Step 4: Simplify right side
    1,276,830.72x = 1,312,635,613,859.02
  5. Step 5: Solve for x
    x = 1,312,635,613,859.02/1,276,830.72
  6. Step 6: Final answer
    x = 1,028,042.01

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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.