Home / 1,356,520.10-1,872,086.25-783,584.42

Finding the Fourth Proportional to 1,356,520.10, 1,872,086.25 and 783,584.42

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Solution

The fourth proportional to 1,356,520.10, 1,872,086.25 and 783,584.42 is: 1,081,397.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,520.10 : 1,872,086.25 = 783,584.42 : x
  2. Step 2: Convert to fraction form
    1,356,520.10/1,872,086.25 = 783,584.42/x
  3. Step 3: Cross multiply
    1,356,520.10x = 1,872,086.25 × 783,584.42
  4. Step 4: Simplify right side
    1,356,520.10x = 1,466,937,618,396.23
  5. Step 5: Solve for x
    x = 1,466,937,618,396.23/1,356,520.10
  6. Step 6: Final answer
    x = 1,081,397.63

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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.