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Finding the Fourth Proportional to 328,650.58, 452,441.19 and 313,604.02

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Solution

The fourth proportional to 328,650.58, 452,441.19 and 313,604.02 is: 431,727.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,650.58 : 452,441.19 = 313,604.02 : x
  2. Step 2: Convert to fraction form
    328,650.58/452,441.19 = 313,604.02/x
  3. Step 3: Cross multiply
    328,650.58x = 452,441.19 × 313,604.02
  4. Step 4: Simplify right side
    328,650.58x = 141,887,375,997.58
  5. Step 5: Solve for x
    x = 141,887,375,997.58/328,650.58
  6. Step 6: Final answer
    x = 431,727.14

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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.