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Finding the Fourth Proportional to 271,145.18, 406,145.59 and 217,546.97

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Solution

The fourth proportional to 271,145.18, 406,145.59 and 217,546.97 is: 325,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,145.18 : 406,145.59 = 217,546.97 : x
  2. Step 2: Convert to fraction form
    271,145.18/406,145.59 = 217,546.97/x
  3. Step 3: Cross multiply
    271,145.18x = 406,145.59 × 217,546.97
  4. Step 4: Simplify right side
    271,145.18x = 88,355,742,483.36
  5. Step 5: Solve for x
    x = 88,355,742,483.36/271,145.18
  6. Step 6: Final answer
    x = 325,861.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.