Home / 1,638,833.88-2,261,600.28-913,727.28

Finding the Fourth Proportional to 1,638,833.88, 2,261,600.28 and 913,727.28

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Solution

The fourth proportional to 1,638,833.88, 2,261,600.28 and 913,727.28 is: 1,260,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,833.88 : 2,261,600.28 = 913,727.28 : x
  2. Step 2: Convert to fraction form
    1,638,833.88/2,261,600.28 = 913,727.28/x
  3. Step 3: Cross multiply
    1,638,833.88x = 2,261,600.28 × 913,727.28
  4. Step 4: Simplify right side
    1,638,833.88x = 2,066,485,872,291.64
  5. Step 5: Solve for x
    x = 2,066,485,872,291.64/1,638,833.88
  6. Step 6: Final answer
    x = 1,260,948.96

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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.