Home / 1,640,266.72-2,263,569.48-915,114.60

Finding the Fourth Proportional to 1,640,266.72, 2,263,569.48 and 915,114.60

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Solution

The fourth proportional to 1,640,266.72, 2,263,569.48 and 915,114.60 is: 1,262,858.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,266.72 : 2,263,569.48 = 915,114.60 : x
  2. Step 2: Convert to fraction form
    1,640,266.72/2,263,569.48 = 915,114.60/x
  3. Step 3: Cross multiply
    1,640,266.72x = 2,263,569.48 × 915,114.60
  4. Step 4: Simplify right side
    1,640,266.72x = 2,071,425,479,262.41
  5. Step 5: Solve for x
    x = 2,071,425,479,262.41/1,640,266.72
  6. Step 6: Final answer
    x = 1,262,858.93

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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.