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Finding the Fourth Proportional to 411,603.44, 617,405.16 and 271,329.26

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Solution

The fourth proportional to 411,603.44, 617,405.16 and 271,329.26 is: 406,993.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,603.44 : 617,405.16 = 271,329.26 : x
  2. Step 2: Convert to fraction form
    411,603.44/617,405.16 = 271,329.26/x
  3. Step 3: Cross multiply
    411,603.44x = 617,405.16 × 271,329.26
  4. Step 4: Simplify right side
    411,603.44x = 167,520,085,182.98
  5. Step 5: Solve for x
    x = 167,520,085,182.98/411,603.44
  6. Step 6: Final answer
    x = 406,993.89

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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.