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Finding the Fourth Proportional to 411,617.20, 617,425.80 and 174,967.60

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Solution

The fourth proportional to 411,617.20, 617,425.80 and 174,967.60 is: 262,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,617.20 : 617,425.80 = 174,967.60 : x
  2. Step 2: Convert to fraction form
    411,617.20/617,425.80 = 174,967.60/x
  3. Step 3: Cross multiply
    411,617.20x = 617,425.80 × 174,967.60
  4. Step 4: Simplify right side
    411,617.20x = 108,029,510,404.08
  5. Step 5: Solve for x
    x = 108,029,510,404.08/411,617.20
  6. Step 6: Final answer
    x = 262,451.40

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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.