Home / 1,640,652.55-2,264,214.90-915,512.30

Finding the Fourth Proportional to 1,640,652.55, 2,264,214.90 and 915,512.30

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Solution

The fourth proportional to 1,640,652.55, 2,264,214.90 and 915,512.30 is: 1,263,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,652.55 : 2,264,214.90 = 915,512.30 : x
  2. Step 2: Convert to fraction form
    1,640,652.55/2,264,214.90 = 915,512.30/x
  3. Step 3: Cross multiply
    1,640,652.55x = 2,264,214.90 × 915,512.30
  4. Step 4: Simplify right side
    1,640,652.55x = 2,072,916,591,396.17
  5. Step 5: Solve for x
    x = 2,072,916,591,396.17/1,640,652.55
  6. Step 6: Final answer
    x = 1,263,470.80

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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.