Home / 1,640,497.53-2,263,892.85-915,375.81

Finding the Fourth Proportional to 1,640,497.53, 2,263,892.85 and 915,375.81

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Solution

The fourth proportional to 1,640,497.53, 2,263,892.85 and 915,375.81 is: 1,263,222.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,497.53 : 2,263,892.85 = 915,375.81 : x
  2. Step 2: Convert to fraction form
    1,640,497.53/2,263,892.85 = 915,375.81/x
  3. Step 3: Cross multiply
    1,640,497.53x = 2,263,892.85 × 915,375.81
  4. Step 4: Simplify right side
    1,640,497.53x = 2,072,312,751,321.96
  5. Step 5: Solve for x
    x = 2,072,312,751,321.96/1,640,497.53
  6. Step 6: Final answer
    x = 1,263,222.11

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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.