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Finding the Fourth Proportional to 483,028.10, 724,542.15 and 404,879.30

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Solution

The fourth proportional to 483,028.10, 724,542.15 and 404,879.30 is: 607,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,028.10 : 724,542.15 = 404,879.30 : x
  2. Step 2: Convert to fraction form
    483,028.10/724,542.15 = 404,879.30/x
  3. Step 3: Cross multiply
    483,028.10x = 724,542.15 × 404,879.30
  4. Step 4: Simplify right side
    483,028.10x = 293,352,118,512.50
  5. Step 5: Solve for x
    x = 293,352,118,512.50/483,028.10
  6. Step 6: Final answer
    x = 607,318.95

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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.