Home / 1,696,990.38-2,545,478.97-686,100.21

Finding the Fourth Proportional to 1,696,990.38, 2,545,478.97 and 686,100.21

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Solution

The fourth proportional to 1,696,990.38, 2,545,478.97 and 686,100.21 is: 1,029,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696,990.38 : 2,545,478.97 = 686,100.21 : x
  2. Step 2: Convert to fraction form
    1,696,990.38/2,545,478.97 = 686,100.21/x
  3. Step 3: Cross multiply
    1,696,990.38x = 2,545,478.97 × 686,100.21
  4. Step 4: Simplify right side
    1,696,990.38x = 1,746,453,655,867.58
  5. Step 5: Solve for x
    x = 1,746,453,655,867.58/1,696,990.38
  6. Step 6: Final answer
    x = 1,029,147.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.