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Finding the Fourth Proportional to 567,226.41, 782,762.31 and 309,105.60

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Solution

The fourth proportional to 567,226.41, 782,762.31 and 309,105.60 is: 426,560.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,226.41 : 782,762.31 = 309,105.60 : x
  2. Step 2: Convert to fraction form
    567,226.41/782,762.31 = 309,105.60/x
  3. Step 3: Cross multiply
    567,226.41x = 782,762.31 × 309,105.60
  4. Step 4: Simplify right side
    567,226.41x = 241,956,213,489.94
  5. Step 5: Solve for x
    x = 241,956,213,489.94/567,226.41
  6. Step 6: Final answer
    x = 426,560.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.