Home / 1,640,910-2,264,569.38-915,898.80

Finding the Fourth Proportional to 1,640,910, 2,264,569.38 and 915,898.80

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Solution

The fourth proportional to 1,640,910, 2,264,569.38 and 915,898.80 is: 1,264,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,910 : 2,264,569.38 = 915,898.80 : x
  2. Step 2: Convert to fraction form
    1,640,910/2,264,569.38 = 915,898.80/x
  3. Step 3: Cross multiply
    1,640,910x = 2,264,569.38 × 915,898.80
  4. Step 4: Simplify right side
    1,640,910x = 2,074,116,377,658.74
  5. Step 5: Solve for x
    x = 2,074,116,377,658.74/1,640,910
  6. Step 6: Final answer
    x = 1,264,003.74

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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.