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Finding the Fourth Proportional to 483,019.12, 666,553.42 and 289,536.13

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Solution

The fourth proportional to 483,019.12, 666,553.42 and 289,536.13 is: 399,552.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,019.12 : 666,553.42 = 289,536.13 : x
  2. Step 2: Convert to fraction form
    483,019.12/666,553.42 = 289,536.13/x
  3. Step 3: Cross multiply
    483,019.12x = 666,553.42 × 289,536.13
  4. Step 4: Simplify right side
    483,019.12x = 192,991,297,665.07
  5. Step 5: Solve for x
    x = 192,991,297,665.07/483,019.12
  6. Step 6: Final answer
    x = 399,552.09

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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.