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Finding the Fourth Proportional to 307,586.80, 461,380.20 and 276,482.80

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Solution

The fourth proportional to 307,586.80, 461,380.20 and 276,482.80 is: 414,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,586.80 : 461,380.20 = 276,482.80 : x
  2. Step 2: Convert to fraction form
    307,586.80/461,380.20 = 276,482.80/x
  3. Step 3: Cross multiply
    307,586.80x = 461,380.20 × 276,482.80
  4. Step 4: Simplify right side
    307,586.80x = 127,563,689,560.56
  5. Step 5: Solve for x
    x = 127,563,689,560.56/307,586.80
  6. Step 6: Final answer
    x = 414,724.20

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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.