Home / 1,640,265.28-2,263,567.49-915,113.11

Finding the Fourth Proportional to 1,640,265.28, 2,263,567.49 and 915,113.11

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Solution

The fourth proportional to 1,640,265.28, 2,263,567.49 and 915,113.11 is: 1,262,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,265.28 : 2,263,567.49 = 915,113.11 : x
  2. Step 2: Convert to fraction form
    1,640,265.28/2,263,567.49 = 915,113.11/x
  3. Step 3: Cross multiply
    1,640,265.28x = 2,263,567.49 × 915,113.11
  4. Step 4: Simplify right side
    1,640,265.28x = 2,071,420,274,150.96
  5. Step 5: Solve for x
    x = 2,071,420,274,150.96/1,640,265.28
  6. Step 6: Final answer
    x = 1,262,856.87

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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.