Home / 1,189,868.13-1,642,081.01-680,656.77

Finding the Fourth Proportional to 1,189,868.13, 1,642,081.01 and 680,656.77

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Solution

The fourth proportional to 1,189,868.13, 1,642,081.01 and 680,656.77 is: 939,342.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,868.13 : 1,642,081.01 = 680,656.77 : x
  2. Step 2: Convert to fraction form
    1,189,868.13/1,642,081.01 = 680,656.77/x
  3. Step 3: Cross multiply
    1,189,868.13x = 1,642,081.01 × 680,656.77
  4. Step 4: Simplify right side
    1,189,868.13x = 1,117,693,552,941.65
  5. Step 5: Solve for x
    x = 1,117,693,552,941.65/1,189,868.13
  6. Step 6: Final answer
    x = 939,342.37

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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.