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Finding the Fourth Proportional to 351,011.74, 484,396.26 and 189,866.74

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Solution

The fourth proportional to 351,011.74, 484,396.26 and 189,866.74 is: 262,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,011.74 : 484,396.26 = 189,866.74 : x
  2. Step 2: Convert to fraction form
    351,011.74/484,396.26 = 189,866.74/x
  3. Step 3: Cross multiply
    351,011.74x = 484,396.26 × 189,866.74
  4. Step 4: Simplify right side
    351,011.74x = 91,970,738,754.39
  5. Step 5: Solve for x
    x = 91,970,738,754.39/351,011.74
  6. Step 6: Final answer
    x = 262,016.13

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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.