Home / 939,681.14-1,296,760.86-509,961.38

Finding the Fourth Proportional to 939,681.14, 1,296,760.86 and 509,961.38

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Solution

The fourth proportional to 939,681.14, 1,296,760.86 and 509,961.38 is: 703,747.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,681.14 : 1,296,760.86 = 509,961.38 : x
  2. Step 2: Convert to fraction form
    939,681.14/1,296,760.86 = 509,961.38/x
  3. Step 3: Cross multiply
    939,681.14x = 1,296,760.86 × 509,961.38
  4. Step 4: Simplify right side
    939,681.14x = 661,297,957,695.59
  5. Step 5: Solve for x
    x = 661,297,957,695.59/939,681.14
  6. Step 6: Final answer
    x = 703,747.19

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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.