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Finding the Fourth Proportional to 333,489.37, 459,904.42 and 308,719.52

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Solution

The fourth proportional to 333,489.37, 459,904.42 and 308,719.52 is: 425,745.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,489.37 : 459,904.42 = 308,719.52 : x
  2. Step 2: Convert to fraction form
    333,489.37/459,904.42 = 308,719.52/x
  3. Step 3: Cross multiply
    333,489.37x = 459,904.42 × 308,719.52
  4. Step 4: Simplify right side
    333,489.37x = 141,981,471,788.28
  5. Step 5: Solve for x
    x = 141,981,471,788.28/333,489.37
  6. Step 6: Final answer
    x = 425,745.12

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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.