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Finding the Fourth Proportional to 383,016.59, 528,170.87 and 253,910.15

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Solution

The fourth proportional to 383,016.59, 528,170.87 and 253,910.15 is: 350,136.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,016.59 : 528,170.87 = 253,910.15 : x
  2. Step 2: Convert to fraction form
    383,016.59/528,170.87 = 253,910.15/x
  3. Step 3: Cross multiply
    383,016.59x = 528,170.87 × 253,910.15
  4. Step 4: Simplify right side
    383,016.59x = 134,107,940,916.93
  5. Step 5: Solve for x
    x = 134,107,940,916.93/383,016.59
  6. Step 6: Final answer
    x = 350,136.12

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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.