Home / 1,689,451.37-2,330,858.62-1,281,127.85

Finding the Fourth Proportional to 1,689,451.37, 2,330,858.62 and 1,281,127.85

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Solution

The fourth proportional to 1,689,451.37, 2,330,858.62 and 1,281,127.85 is: 1,767,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,451.37 : 2,330,858.62 = 1,281,127.85 : x
  2. Step 2: Convert to fraction form
    1,689,451.37/2,330,858.62 = 1,281,127.85/x
  3. Step 3: Cross multiply
    1,689,451.37x = 2,330,858.62 × 1,281,127.85
  4. Step 4: Simplify right side
    1,689,451.37x = 2,986,127,892,494.57
  5. Step 5: Solve for x
    x = 2,986,127,892,494.57/1,689,451.37
  6. Step 6: Final answer
    x = 1,767,513.37

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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.