Home / 739,186.89-1,108,780.49-259,791.03

Finding the Fourth Proportional to 739,186.89, 1,108,780.49 and 259,791.03

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Solution

The fourth proportional to 739,186.89, 1,108,780.49 and 259,791.03 is: 389,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,186.89 : 1,108,780.49 = 259,791.03 : x
  2. Step 2: Convert to fraction form
    739,186.89/1,108,780.49 = 259,791.03/x
  3. Step 3: Cross multiply
    739,186.89x = 1,108,780.49 × 259,791.03
  4. Step 4: Simplify right side
    739,186.89x = 288,051,225,541.01
  5. Step 5: Solve for x
    x = 288,051,225,541.01/739,186.89
  6. Step 6: Final answer
    x = 389,686.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.