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Finding the Fourth Proportional to 541,979.40, 813,890.70 and 401,896.20

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Solution

The fourth proportional to 541,979.40, 813,890.70 and 401,896.20 is: 603,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,979.40 : 813,890.70 = 401,896.20 : x
  2. Step 2: Convert to fraction form
    541,979.40/813,890.70 = 401,896.20/x
  3. Step 3: Cross multiply
    541,979.40x = 813,890.70 × 401,896.20
  4. Step 4: Simplify right side
    541,979.40x = 327,099,579,545.34
  5. Step 5: Solve for x
    x = 327,099,579,545.34/541,979.40
  6. Step 6: Final answer
    x = 603,527.70

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Double scale
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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.