Home / 1,693,420-2,336,834.96-1,005,121.76

Finding the Fourth Proportional to 1,693,420, 2,336,834.96 and 1,005,121.76

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Solution

The fourth proportional to 1,693,420, 2,336,834.96 and 1,005,121.76 is: 1,387,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693,420 : 2,336,834.96 = 1,005,121.76 : x
  2. Step 2: Convert to fraction form
    1,693,420/2,336,834.96 = 1,005,121.76/x
  3. Step 3: Cross multiply
    1,693,420x = 2,336,834.96 × 1,005,121.76
  4. Step 4: Simplify right side
    1,693,420x = 2,348,803,667,824.73
  5. Step 5: Solve for x
    x = 2,348,803,667,824.73/1,693,420
  6. Step 6: Final answer
    x = 1,387,017.79

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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.