Home / 805,388.56-1,111,459.56-465,963.28

Finding the Fourth Proportional to 805,388.56, 1,111,459.56 and 465,963.28

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Solution

The fourth proportional to 805,388.56, 1,111,459.56 and 465,963.28 is: 643,042.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,388.56 : 1,111,459.56 = 465,963.28 : x
  2. Step 2: Convert to fraction form
    805,388.56/1,111,459.56 = 465,963.28/x
  3. Step 3: Cross multiply
    805,388.56x = 1,111,459.56 × 465,963.28
  4. Step 4: Simplify right side
    805,388.56x = 517,899,342,164.96
  5. Step 5: Solve for x
    x = 517,899,342,164.96/805,388.56
  6. Step 6: Final answer
    x = 643,042.83

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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.