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Finding the Fourth Proportional to 303,931.29, 455,489.39 and 236,544.69

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Solution

The fourth proportional to 303,931.29, 455,489.39 and 236,544.69 is: 354,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,931.29 : 455,489.39 = 236,544.69 : x
  2. Step 2: Convert to fraction form
    303,931.29/455,489.39 = 236,544.69/x
  3. Step 3: Cross multiply
    303,931.29x = 455,489.39 × 236,544.69
  4. Step 4: Simplify right side
    303,931.29x = 107,743,595,373.12
  5. Step 5: Solve for x
    x = 107,743,595,373.12/303,931.29
  6. Step 6: Final answer
    x = 354,499.85

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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.