Home / 1,640,913.83-2,264,689.34-915,808.26

Finding the Fourth Proportional to 1,640,913.83, 2,264,689.34 and 915,808.26

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Solution

The fourth proportional to 1,640,913.83, 2,264,689.34 and 915,808.26 is: 1,263,942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,913.83 : 2,264,689.34 = 915,808.26 : x
  2. Step 2: Convert to fraction form
    1,640,913.83/2,264,689.34 = 915,808.26/x
  3. Step 3: Cross multiply
    1,640,913.83x = 2,264,689.34 × 915,808.26
  4. Step 4: Simplify right side
    1,640,913.83x = 2,074,021,203,905.95
  5. Step 5: Solve for x
    x = 2,074,021,203,905.95/1,640,913.83
  6. Step 6: Final answer
    x = 1,263,942.79

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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.