Home / 763,891.11-1,053,774.41-518,888.48

Finding the Fourth Proportional to 763,891.11, 1,053,774.41 and 518,888.48

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Solution

The fourth proportional to 763,891.11, 1,053,774.41 and 518,888.48 is: 715,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,891.11 : 1,053,774.41 = 518,888.48 : x
  2. Step 2: Convert to fraction form
    763,891.11/1,053,774.41 = 518,888.48/x
  3. Step 3: Cross multiply
    763,891.11x = 1,053,774.41 × 518,888.48
  4. Step 4: Simplify right side
    763,891.11x = 546,791,394,004.48
  5. Step 5: Solve for x
    x = 546,791,394,004.48/763,891.11
  6. Step 6: Final answer
    x = 715,797.56

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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.