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Finding the Fourth Proportional to 609,572.90, 913,916.36 and 254,688.42

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Solution

The fourth proportional to 609,572.90, 913,916.36 and 254,688.42 is: 381,847.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,572.90 : 913,916.36 = 254,688.42 : x
  2. Step 2: Convert to fraction form
    609,572.90/913,916.36 = 254,688.42/x
  3. Step 3: Cross multiply
    609,572.90x = 913,916.36 × 254,688.42
  4. Step 4: Simplify right side
    609,572.90x = 232,763,913,740.55
  5. Step 5: Solve for x
    x = 232,763,913,740.55/609,572.90
  6. Step 6: Final answer
    x = 381,847.54

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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.