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Finding the Fourth Proportional to 483,174.05, 666,588.96 and 279,187.38

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Solution

The fourth proportional to 483,174.05, 666,588.96 and 279,187.38 is: 385,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,174.05 : 666,588.96 = 279,187.38 : x
  2. Step 2: Convert to fraction form
    483,174.05/666,588.96 = 279,187.38/x
  3. Step 3: Cross multiply
    483,174.05x = 666,588.96 × 279,187.38
  4. Step 4: Simplify right side
    483,174.05x = 186,103,225,279.33
  5. Step 5: Solve for x
    x = 186,103,225,279.33/483,174.05
  6. Step 6: Final answer
    x = 385,168.09

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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.