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Finding the Fourth Proportional to 475,120.89, 655,418.25 and 293,774.85

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Solution

The fourth proportional to 475,120.89, 655,418.25 and 293,774.85 is: 405,255.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,120.89 : 655,418.25 = 293,774.85 : x
  2. Step 2: Convert to fraction form
    475,120.89/655,418.25 = 293,774.85/x
  3. Step 3: Cross multiply
    475,120.89x = 655,418.25 × 293,774.85
  4. Step 4: Simplify right side
    475,120.89x = 192,545,398,081.01
  5. Step 5: Solve for x
    x = 192,545,398,081.01/475,120.89
  6. Step 6: Final answer
    x = 405,255.59

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1.5x scale

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.