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Finding the Fourth Proportional to 365,921.24, 505,024.15 and 210,842.85

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Solution

The fourth proportional to 365,921.24, 505,024.15 and 210,842.85 is: 290,993.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,921.24 : 505,024.15 = 210,842.85 : x
  2. Step 2: Convert to fraction form
    365,921.24/505,024.15 = 210,842.85/x
  3. Step 3: Cross multiply
    365,921.24x = 505,024.15 × 210,842.85
  4. Step 4: Simplify right side
    365,921.24x = 106,480,728,683.88
  5. Step 5: Solve for x
    x = 106,480,728,683.88/365,921.24
  6. Step 6: Final answer
    x = 290,993.57

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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.