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Finding the Fourth Proportional to 411,517.60, 617,276.40 and 383,869.60

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Solution

The fourth proportional to 411,517.60, 617,276.40 and 383,869.60 is: 575,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,517.60 : 617,276.40 = 383,869.60 : x
  2. Step 2: Convert to fraction form
    411,517.60/617,276.40 = 383,869.60/x
  3. Step 3: Cross multiply
    411,517.60x = 617,276.40 × 383,869.60
  4. Step 4: Simplify right side
    411,517.60x = 236,953,644,757.44
  5. Step 5: Solve for x
    x = 236,953,644,757.44/411,517.60
  6. Step 6: Final answer
    x = 575,804.40

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Similar ratio
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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.