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Finding the Fourth Proportional to 361,991.80, 542,987.70 and 333,998.20

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Solution

The fourth proportional to 361,991.80, 542,987.70 and 333,998.20 is: 500,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,991.80 : 542,987.70 = 333,998.20 : x
  2. Step 2: Convert to fraction form
    361,991.80/542,987.70 = 333,998.20/x
  3. Step 3: Cross multiply
    361,991.80x = 542,987.70 × 333,998.20
  4. Step 4: Simplify right side
    361,991.80x = 181,356,914,422.14
  5. Step 5: Solve for x
    x = 181,356,914,422.14/361,991.80
  6. Step 6: Final answer
    x = 500,997.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.