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Finding the Fourth Proportional to 544,134.30, 816,201.45 and 411,423.90

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Solution

The fourth proportional to 544,134.30, 816,201.45 and 411,423.90 is: 617,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,134.30 : 816,201.45 = 411,423.90 : x
  2. Step 2: Convert to fraction form
    544,134.30/816,201.45 = 411,423.90/x
  3. Step 3: Cross multiply
    544,134.30x = 816,201.45 × 411,423.90
  4. Step 4: Simplify right side
    544,134.30x = 335,804,783,744.66
  5. Step 5: Solve for x
    x = 335,804,783,744.66/544,134.30
  6. Step 6: Final answer
    x = 617,135.85

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Double scale
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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.