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Finding the Fourth Proportional to 222,758.70, 334,138.05 and 207,012.30

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Solution

The fourth proportional to 222,758.70, 334,138.05 and 207,012.30 is: 310,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,758.70 : 334,138.05 = 207,012.30 : x
  2. Step 2: Convert to fraction form
    222,758.70/334,138.05 = 207,012.30/x
  3. Step 3: Cross multiply
    222,758.70x = 334,138.05 × 207,012.30
  4. Step 4: Simplify right side
    222,758.70x = 69,170,686,248.02
  5. Step 5: Solve for x
    x = 69,170,686,248.02/222,758.70
  6. Step 6: Final answer
    x = 310,518.45

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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.