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Finding the Fourth Proportional to 578,601.96, 867,290.58 and 263,280.30

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Solution

The fourth proportional to 578,601.96, 867,290.58 and 263,280.30 is: 394,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,601.96 : 867,290.58 = 263,280.30 : x
  2. Step 2: Convert to fraction form
    578,601.96/867,290.58 = 263,280.30/x
  3. Step 3: Cross multiply
    578,601.96x = 867,290.58 × 263,280.30
  4. Step 4: Simplify right side
    578,601.96x = 228,340,524,089.57
  5. Step 5: Solve for x
    x = 228,340,524,089.57/578,601.96
  6. Step 6: Final answer
    x = 394,641.81

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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.