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Finding the Fourth Proportional to 367,301.18, 507,065.86 and 285,446.56

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Solution

The fourth proportional to 367,301.18, 507,065.86 and 285,446.56 is: 394,064.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,301.18 : 507,065.86 = 285,446.56 : x
  2. Step 2: Convert to fraction form
    367,301.18/507,065.86 = 285,446.56/x
  3. Step 3: Cross multiply
    367,301.18x = 507,065.86 × 285,446.56
  4. Step 4: Simplify right side
    367,301.18x = 144,740,203,642.80
  5. Step 5: Solve for x
    x = 144,740,203,642.80/367,301.18
  6. Step 6: Final answer
    x = 394,064.08

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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.