Home / 805,805.56-1,112,391.96-511,603.04

Finding the Fourth Proportional to 805,805.56, 1,112,391.96 and 511,603.04

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Solution

The fourth proportional to 805,805.56, 1,112,391.96 and 511,603.04 is: 706,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,805.56 : 1,112,391.96 = 511,603.04 : x
  2. Step 2: Convert to fraction form
    805,805.56/1,112,391.96 = 511,603.04/x
  3. Step 3: Cross multiply
    805,805.56x = 1,112,391.96 × 511,603.04
  4. Step 4: Simplify right side
    805,805.56x = 569,103,108,407.56
  5. Step 5: Solve for x
    x = 569,103,108,407.56/805,805.56
  6. Step 6: Final answer
    x = 706,253.64

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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.