Home / 642,579.97-886,858.06-410,107.21

Finding the Fourth Proportional to 642,579.97, 886,858.06 and 410,107.21

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Solution

The fourth proportional to 642,579.97, 886,858.06 and 410,107.21 is: 566,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,579.97 : 886,858.06 = 410,107.21 : x
  2. Step 2: Convert to fraction form
    642,579.97/886,858.06 = 410,107.21/x
  3. Step 3: Cross multiply
    642,579.97x = 886,858.06 × 410,107.21
  4. Step 4: Simplify right side
    642,579.97x = 363,706,883,520.01
  5. Step 5: Solve for x
    x = 363,706,883,520.01/642,579.97
  6. Step 6: Final answer
    x = 566,010.30

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1.5x scale

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.