Home / 1,443,920.26-1,991,984.32-870,641.95

Finding the Fourth Proportional to 1,443,920.26, 1,991,984.32 and 870,641.95

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Solution

The fourth proportional to 1,443,920.26, 1,991,984.32 and 870,641.95 is: 1,201,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,920.26 : 1,991,984.32 = 870,641.95 : x
  2. Step 2: Convert to fraction form
    1,443,920.26/1,991,984.32 = 870,641.95/x
  3. Step 3: Cross multiply
    1,443,920.26x = 1,991,984.32 × 870,641.95
  4. Step 4: Simplify right side
    1,443,920.26x = 1,734,305,115,026.22
  5. Step 5: Solve for x
    x = 1,734,305,115,026.22/1,443,920.26
  6. Step 6: Final answer
    x = 1,201,108.65

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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.