Home / 1,291,799.10-1,936,921.05-661,943.10

Finding the Fourth Proportional to 1,291,799.10, 1,936,921.05 and 661,943.10

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Solution

The fourth proportional to 1,291,799.10, 1,936,921.05 and 661,943.10 is: 992,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,799.10 : 1,936,921.05 = 661,943.10 : x
  2. Step 2: Convert to fraction form
    1,291,799.10/1,936,921.05 = 661,943.10/x
  3. Step 3: Cross multiply
    1,291,799.10x = 1,936,921.05 × 661,943.10
  4. Step 4: Simplify right side
    1,291,799.10x = 1,282,131,524,292.25
  5. Step 5: Solve for x
    x = 1,282,131,524,292.25/1,291,799.10
  6. Step 6: Final answer
    x = 992,516.19

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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.