Home / 805,268.51-1,111,291.77-442,701.51

Finding the Fourth Proportional to 805,268.51, 1,111,291.77 and 442,701.51

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Solution

The fourth proportional to 805,268.51, 1,111,291.77 and 442,701.51 is: 610,939.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,268.51 : 1,111,291.77 = 442,701.51 : x
  2. Step 2: Convert to fraction form
    805,268.51/1,111,291.77 = 442,701.51/x
  3. Step 3: Cross multiply
    805,268.51x = 1,111,291.77 × 442,701.51
  4. Step 4: Simplify right side
    805,268.51x = 491,970,542,122.36
  5. Step 5: Solve for x
    x = 491,970,542,122.36/805,268.51
  6. Step 6: Final answer
    x = 610,939.75

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Double scale
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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.