Home / 744,322.87-1,027,143.61-422,062.39

Finding the Fourth Proportional to 744,322.87, 1,027,143.61 and 422,062.39

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Solution

The fourth proportional to 744,322.87, 1,027,143.61 and 422,062.39 is: 582,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,322.87 : 1,027,143.61 = 422,062.39 : x
  2. Step 2: Convert to fraction form
    744,322.87/1,027,143.61 = 422,062.39/x
  3. Step 3: Cross multiply
    744,322.87x = 1,027,143.61 × 422,062.39
  4. Step 4: Simplify right side
    744,322.87x = 433,518,686,909.83
  5. Step 5: Solve for x
    x = 433,518,686,909.83/744,322.87
  6. Step 6: Final answer
    x = 582,433.65

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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.