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Finding the Fourth Proportional to 383,252.57, 528,900.54 and 219,938.96

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Solution

The fourth proportional to 383,252.57, 528,900.54 and 219,938.96 is: 303,522.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,252.57 : 528,900.54 = 219,938.96 : x
  2. Step 2: Convert to fraction form
    383,252.57/528,900.54 = 219,938.96/x
  3. Step 3: Cross multiply
    383,252.57x = 528,900.54 × 219,938.96
  4. Step 4: Simplify right side
    383,252.57x = 116,325,832,066.54
  5. Step 5: Solve for x
    x = 116,325,832,066.54/383,252.57
  6. Step 6: Final answer
    x = 303,522.64

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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.