Home / 881,067.89-1,215,850.07-518,513.11

Finding the Fourth Proportional to 881,067.89, 1,215,850.07 and 518,513.11

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Solution

The fourth proportional to 881,067.89, 1,215,850.07 and 518,513.11 is: 715,534.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,067.89 : 1,215,850.07 = 518,513.11 : x
  2. Step 2: Convert to fraction form
    881,067.89/1,215,850.07 = 518,513.11/x
  3. Step 3: Cross multiply
    881,067.89x = 1,215,850.07 × 518,513.11
  4. Step 4: Simplify right side
    881,067.89x = 630,434,192,417.60
  5. Step 5: Solve for x
    x = 630,434,192,417.60/881,067.89
  6. Step 6: Final answer
    x = 715,534.18

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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.