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Finding the Fourth Proportional to 411,466.60, 617,199.90 and 328,522.60

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Solution

The fourth proportional to 411,466.60, 617,199.90 and 328,522.60 is: 492,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,466.60 : 617,199.90 = 328,522.60 : x
  2. Step 2: Convert to fraction form
    411,466.60/617,199.90 = 328,522.60/x
  3. Step 3: Cross multiply
    411,466.60x = 617,199.90 × 328,522.60
  4. Step 4: Simplify right side
    411,466.60x = 202,764,115,867.74
  5. Step 5: Solve for x
    x = 202,764,115,867.74/411,466.60
  6. Step 6: Final answer
    x = 492,783.90

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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.