Home / 1,291,716.30-1,936,699.65-660,110.70

Finding the Fourth Proportional to 1,291,716.30, 1,936,699.65 and 660,110.70

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Solution

The fourth proportional to 1,291,716.30, 1,936,699.65 and 660,110.70 is: 989,719.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,716.30 : 1,936,699.65 = 660,110.70 : x
  2. Step 2: Convert to fraction form
    1,291,716.30/1,936,699.65 = 660,110.70/x
  3. Step 3: Cross multiply
    1,291,716.30x = 1,936,699.65 × 660,110.70
  4. Step 4: Simplify right side
    1,291,716.30x = 1,278,436,161,651.25
  5. Step 5: Solve for x
    x = 1,278,436,161,651.25/1,291,716.30
  6. Step 6: Final answer
    x = 989,719.00

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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.