Home / 1,638,535.28-2,261,187.45-913,377.11

Finding the Fourth Proportional to 1,638,535.28, 2,261,187.45 and 913,377.11

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Solution

The fourth proportional to 1,638,535.28, 2,261,187.45 and 913,377.11 is: 1,260,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,535.28 : 2,261,187.45 = 913,377.11 : x
  2. Step 2: Convert to fraction form
    1,638,535.28/2,261,187.45 = 913,377.11/x
  3. Step 3: Cross multiply
    1,638,535.28x = 2,261,187.45 × 913,377.11
  4. Step 4: Simplify right side
    1,638,535.28x = 2,065,316,846,943.33
  5. Step 5: Solve for x
    x = 2,065,316,846,943.33/1,638,535.28
  6. Step 6: Final answer
    x = 1,260,465.29

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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.