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Finding the Fourth Proportional to 271,420.40, 406,936.20 and 113,567.60

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Solution

The fourth proportional to 271,420.40, 406,936.20 and 113,567.60 is: 170,270.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,420.40 : 406,936.20 = 113,567.60 : x
  2. Step 2: Convert to fraction form
    271,420.40/406,936.20 = 113,567.60/x
  3. Step 3: Cross multiply
    271,420.40x = 406,936.20 × 113,567.60
  4. Step 4: Simplify right side
    271,420.40x = 46,214,767,587.12
  5. Step 5: Solve for x
    x = 46,214,767,587.12/271,420.40
  6. Step 6: Final answer
    x = 170,270.06

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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.