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Finding the Fourth Proportional to 475,085.36, 655,617.90 and 260,233.12

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Solution

The fourth proportional to 475,085.36, 655,617.90 and 260,233.12 is: 359,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,085.36 : 655,617.90 = 260,233.12 : x
  2. Step 2: Convert to fraction form
    475,085.36/655,617.90 = 260,233.12/x
  3. Step 3: Cross multiply
    475,085.36x = 655,617.90 × 260,233.12
  4. Step 4: Simplify right side
    475,085.36x = 170,613,491,644.85
  5. Step 5: Solve for x
    x = 170,613,491,644.85/475,085.36
  6. Step 6: Final answer
    x = 359,121.76

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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.