Home / 451,110.12-621,111.42-382,992.36

Finding the Fourth Proportional to 451,110.12, 621,111.42 and 382,992.36

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Solution

The fourth proportional to 451,110.12, 621,111.42 and 382,992.36 is: 527,323.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,110.12 : 621,111.42 = 382,992.36 : x
  2. Step 2: Convert to fraction form
    451,110.12/621,111.42 = 382,992.36/x
  3. Step 3: Cross multiply
    451,110.12x = 621,111.42 × 382,992.36
  4. Step 4: Simplify right side
    451,110.12x = 237,880,928,568.75
  5. Step 5: Solve for x
    x = 237,880,928,568.75/451,110.12
  6. Step 6: Final answer
    x = 527,323.41

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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.