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Finding the Fourth Proportional to 479,082.42, 661,180.32 and 358,013.52

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Solution

The fourth proportional to 479,082.42, 661,180.32 and 358,013.52 is: 494,093.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,082.42 : 661,180.32 = 358,013.52 : x
  2. Step 2: Convert to fraction form
    479,082.42/661,180.32 = 358,013.52/x
  3. Step 3: Cross multiply
    479,082.42x = 661,180.32 × 358,013.52
  4. Step 4: Simplify right side
    479,082.42x = 236,711,493,717.93
  5. Step 5: Solve for x
    x = 236,711,493,717.93/479,082.42
  6. Step 6: Final answer
    x = 494,093.47

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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.