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Finding the Fourth Proportional to 475,343.75, 655,974.39 and 260,492.27

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Solution

The fourth proportional to 475,343.75, 655,974.39 and 260,492.27 is: 359,479.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,343.75 : 655,974.39 = 260,492.27 : x
  2. Step 2: Convert to fraction form
    475,343.75/655,974.39 = 260,492.27/x
  3. Step 3: Cross multiply
    475,343.75x = 655,974.39 × 260,492.27
  4. Step 4: Simplify right side
    475,343.75x = 170,876,257,912.97
  5. Step 5: Solve for x
    x = 170,876,257,912.97/475,343.75
  6. Step 6: Final answer
    x = 359,479.34

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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.