Home / 1,640,678.29-2,264,264.94-905,778.60

Finding the Fourth Proportional to 1,640,678.29, 2,264,264.94 and 905,778.60

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Solution

The fourth proportional to 1,640,678.29, 2,264,264.94 and 905,778.60 is: 1,250,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,678.29 : 2,264,264.94 = 905,778.60 : x
  2. Step 2: Convert to fraction form
    1,640,678.29/2,264,264.94 = 905,778.60/x
  3. Step 3: Cross multiply
    1,640,678.29x = 2,264,264.94 × 905,778.60
  4. Step 4: Simplify right side
    1,640,678.29x = 2,050,922,729,929.45
  5. Step 5: Solve for x
    x = 2,050,922,729,929.45/1,640,678.29
  6. Step 6: Final answer
    x = 1,250,045.63

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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.