Home / 753,067.78-1,129,602.08-472,781.86

Finding the Fourth Proportional to 753,067.78, 1,129,602.08 and 472,781.86

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Solution

The fourth proportional to 753,067.78, 1,129,602.08 and 472,781.86 is: 709,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,067.78 : 1,129,602.08 = 472,781.86 : x
  2. Step 2: Convert to fraction form
    753,067.78/1,129,602.08 = 472,781.86/x
  3. Step 3: Cross multiply
    753,067.78x = 1,129,602.08 × 472,781.86
  4. Step 4: Simplify right side
    753,067.78x = 534,055,370,078.36
  5. Step 5: Solve for x
    x = 534,055,370,078.36/753,067.78
  6. Step 6: Final answer
    x = 709,173.04

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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.