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Finding the Fourth Proportional to 554,447.50, 831,545.83 and 254,639.87

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Solution

The fourth proportional to 554,447.50, 831,545.83 and 254,639.87 is: 381,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,447.50 : 831,545.83 = 254,639.87 : x
  2. Step 2: Convert to fraction form
    554,447.50/831,545.83 = 254,639.87/x
  3. Step 3: Cross multiply
    554,447.50x = 831,545.83 × 254,639.87
  4. Step 4: Simplify right side
    554,447.50x = 211,744,722,050.24
  5. Step 5: Solve for x
    x = 211,744,722,050.24/554,447.50
  6. Step 6: Final answer
    x = 381,902.20

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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.