Home / 1,696,991.38-2,545,480.47-686,101.21

Finding the Fourth Proportional to 1,696,991.38, 2,545,480.47 and 686,101.21

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Solution

The fourth proportional to 1,696,991.38, 2,545,480.47 and 686,101.21 is: 1,029,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696,991.38 : 2,545,480.47 = 686,101.21 : x
  2. Step 2: Convert to fraction form
    1,696,991.38/2,545,480.47 = 686,101.21/x
  3. Step 3: Cross multiply
    1,696,991.38x = 2,545,480.47 × 686,101.21
  4. Step 4: Simplify right side
    1,696,991.38x = 1,746,457,230,498.37
  5. Step 5: Solve for x
    x = 1,746,457,230,498.37/1,696,991.38
  6. Step 6: Final answer
    x = 1,029,149.15

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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.