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Finding the Fourth Proportional to 543,968.42, 815,952.48 and 169,991.42

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Solution

The fourth proportional to 543,968.42, 815,952.48 and 169,991.42 is: 254,987.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,968.42 : 815,952.48 = 169,991.42 : x
  2. Step 2: Convert to fraction form
    543,968.42/815,952.48 = 169,991.42/x
  3. Step 3: Cross multiply
    543,968.42x = 815,952.48 × 169,991.42
  4. Step 4: Simplify right side
    543,968.42x = 138,704,920,727.72
  5. Step 5: Solve for x
    x = 138,704,920,727.72/543,968.42
  6. Step 6: Final answer
    x = 254,987.08

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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.