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Finding the Fourth Proportional to 431,044.44, 595,113.66 and 317,669.72

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Solution

The fourth proportional to 431,044.44, 595,113.66 and 317,669.72 is: 438,584.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,044.44 : 595,113.66 = 317,669.72 : x
  2. Step 2: Convert to fraction form
    431,044.44/595,113.66 = 317,669.72/x
  3. Step 3: Cross multiply
    431,044.44x = 595,113.66 × 317,669.72
  4. Step 4: Simplify right side
    431,044.44x = 189,049,589,740.38
  5. Step 5: Solve for x
    x = 189,049,589,740.38/431,044.44
  6. Step 6: Final answer
    x = 438,584.92

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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.