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Finding the Fourth Proportional to 354,145.39, 488,706.38 and 192,996.98

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Solution

The fourth proportional to 354,145.39, 488,706.38 and 192,996.98 is: 266,328.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,145.39 : 488,706.38 = 192,996.98 : x
  2. Step 2: Convert to fraction form
    354,145.39/488,706.38 = 192,996.98/x
  3. Step 3: Cross multiply
    354,145.39x = 488,706.38 × 192,996.98
  4. Step 4: Simplify right side
    354,145.39x = 94,318,855,446.73
  5. Step 5: Solve for x
    x = 94,318,855,446.73/354,145.39
  6. Step 6: Final answer
    x = 266,328.06

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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.