Home / 1,689,150.78-2,330,999.26-914,775.33

Finding the Fourth Proportional to 1,689,150.78, 2,330,999.26 and 914,775.33

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Solution

The fourth proportional to 1,689,150.78, 2,330,999.26 and 914,775.33 is: 1,262,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,150.78 : 2,330,999.26 = 914,775.33 : x
  2. Step 2: Convert to fraction form
    1,689,150.78/2,330,999.26 = 914,775.33/x
  3. Step 3: Cross multiply
    1,689,150.78x = 2,330,999.26 × 914,775.33
  4. Step 4: Simplify right side
    1,689,150.78x = 2,132,340,617,296.26
  5. Step 5: Solve for x
    x = 2,132,340,617,296.26/1,689,150.78
  6. Step 6: Final answer
    x = 1,262,374.35

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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.