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Finding the Fourth Proportional to 283,724.40, 425,586.60 and 259,762.80

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Solution

The fourth proportional to 283,724.40, 425,586.60 and 259,762.80 is: 389,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,724.40 : 425,586.60 = 259,762.80 : x
  2. Step 2: Convert to fraction form
    283,724.40/425,586.60 = 259,762.80/x
  3. Step 3: Cross multiply
    283,724.40x = 425,586.60 × 259,762.80
  4. Step 4: Simplify right side
    283,724.40x = 110,551,566,858.48
  5. Step 5: Solve for x
    x = 110,551,566,858.48/283,724.40
  6. Step 6: Final answer
    x = 389,644.20

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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.