Home / 1,640,266.21-2,263,568.79-915,114.04

Finding the Fourth Proportional to 1,640,266.21, 2,263,568.79 and 915,114.04

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Solution

The fourth proportional to 1,640,266.21, 2,263,568.79 and 915,114.04 is: 1,262,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,266.21 : 2,263,568.79 = 915,114.04 : x
  2. Step 2: Convert to fraction form
    1,640,266.21/2,263,568.79 = 915,114.04/x
  3. Step 3: Cross multiply
    1,640,266.21x = 2,263,568.79 × 915,114.04
  4. Step 4: Simplify right side
    1,640,266.21x = 2,071,423,580,234.81
  5. Step 5: Solve for x
    x = 2,071,423,580,234.81/1,640,266.21
  6. Step 6: Final answer
    x = 1,262,858.17

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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.