Home / 1,211,192.20-1,671,429.79-659,930.88

Finding the Fourth Proportional to 1,211,192.20, 1,671,429.79 and 659,930.88

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Solution

The fourth proportional to 1,211,192.20, 1,671,429.79 and 659,930.88 is: 910,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,192.20 : 1,671,429.79 = 659,930.88 : x
  2. Step 2: Convert to fraction form
    1,211,192.20/1,671,429.79 = 659,930.88/x
  3. Step 3: Cross multiply
    1,211,192.20x = 1,671,429.79 × 659,930.88
  4. Step 4: Simplify right side
    1,211,192.20x = 1,103,028,139,265.69
  5. Step 5: Solve for x
    x = 1,103,028,139,265.69/1,211,192.20
  6. Step 6: Final answer
    x = 910,696.20

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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.