Home / 857,416.47-1,183,149.48-494,957.10

Finding the Fourth Proportional to 857,416.47, 1,183,149.48 and 494,957.10

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Solution

The fourth proportional to 857,416.47, 1,183,149.48 and 494,957.10 is: 682,991.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,416.47 : 1,183,149.48 = 494,957.10 : x
  2. Step 2: Convert to fraction form
    857,416.47/1,183,149.48 = 494,957.10/x
  3. Step 3: Cross multiply
    857,416.47x = 1,183,149.48 × 494,957.10
  4. Step 4: Simplify right side
    857,416.47x = 585,608,235,487.31
  5. Step 5: Solve for x
    x = 585,608,235,487.31/857,416.47
  6. Step 6: Final answer
    x = 682,991.59

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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.