Home / 872,067.87-1,203,443.19-509,546.97

Finding the Fourth Proportional to 872,067.87, 1,203,443.19 and 509,546.97

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Solution

The fourth proportional to 872,067.87, 1,203,443.19 and 509,546.97 is: 703,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,067.87 : 1,203,443.19 = 509,546.97 : x
  2. Step 2: Convert to fraction form
    872,067.87/1,203,443.19 = 509,546.97/x
  3. Step 3: Cross multiply
    872,067.87x = 1,203,443.19 × 509,546.97
  4. Step 4: Simplify right side
    872,067.87x = 613,210,831,031.63
  5. Step 5: Solve for x
    x = 613,210,831,031.63/872,067.87
  6. Step 6: Final answer
    x = 703,168.70

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1.5x scale

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.