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Finding the Fourth Proportional to 383,314.75, 528,952.35 and 219,936.67

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Solution

The fourth proportional to 383,314.75, 528,952.35 and 219,936.67 is: 303,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,314.75 : 528,952.35 = 219,936.67 : x
  2. Step 2: Convert to fraction form
    383,314.75/528,952.35 = 219,936.67/x
  3. Step 3: Cross multiply
    383,314.75x = 528,952.35 × 219,936.67
  4. Step 4: Simplify right side
    383,314.75x = 116,336,018,447.68
  5. Step 5: Solve for x
    x = 116,336,018,447.68/383,314.75
  6. Step 6: Final answer
    x = 303,499.98

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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.