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Finding the Fourth Proportional to 291,014.56, 401,596.14 and 163,690.26

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Solution

The fourth proportional to 291,014.56, 401,596.14 and 163,690.26 is: 225,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,014.56 : 401,596.14 = 163,690.26 : x
  2. Step 2: Convert to fraction form
    291,014.56/401,596.14 = 163,690.26/x
  3. Step 3: Cross multiply
    291,014.56x = 401,596.14 × 163,690.26
  4. Step 4: Simplify right side
    291,014.56x = 65,737,376,571.60
  5. Step 5: Solve for x
    x = 65,737,376,571.60/291,014.56
  6. Step 6: Final answer
    x = 225,890.34

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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.