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Finding the Fourth Proportional to 279,626.57, 385,752.74 and 189,014.16

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Solution

The fourth proportional to 279,626.57, 385,752.74 and 189,014.16 is: 260,750.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,626.57 : 385,752.74 = 189,014.16 : x
  2. Step 2: Convert to fraction form
    279,626.57/385,752.74 = 189,014.16/x
  3. Step 3: Cross multiply
    279,626.57x = 385,752.74 × 189,014.16
  4. Step 4: Simplify right side
    279,626.57x = 72,912,729,173.73
  5. Step 5: Solve for x
    x = 72,912,729,173.73/279,626.57
  6. Step 6: Final answer
    x = 260,750.37

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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.