Home / 1,915,326.43-2,643,269.49-1,055,885.11

Finding the Fourth Proportional to 1,915,326.43, 2,643,269.49 and 1,055,885.11

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Solution

The fourth proportional to 1,915,326.43, 2,643,269.49 and 1,055,885.11 is: 1,457,187.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,326.43 : 2,643,269.49 = 1,055,885.11 : x
  2. Step 2: Convert to fraction form
    1,915,326.43/2,643,269.49 = 1,055,885.11/x
  3. Step 3: Cross multiply
    1,915,326.43x = 2,643,269.49 × 1,055,885.11
  4. Step 4: Simplify right side
    1,915,326.43x = 2,790,988,877,712.52
  5. Step 5: Solve for x
    x = 2,790,988,877,712.52/1,915,326.43
  6. Step 6: Final answer
    x = 1,457,187.06

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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.