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Finding the Fourth Proportional to 365,942.81, 505,230.30 and 235,173.51

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Solution

The fourth proportional to 365,942.81, 505,230.30 and 235,173.51 is: 324,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,942.81 : 505,230.30 = 235,173.51 : x
  2. Step 2: Convert to fraction form
    365,942.81/505,230.30 = 235,173.51/x
  3. Step 3: Cross multiply
    365,942.81x = 505,230.30 × 235,173.51
  4. Step 4: Simplify right side
    365,942.81x = 118,816,783,009.35
  5. Step 5: Solve for x
    x = 118,816,783,009.35/365,942.81
  6. Step 6: Final answer
    x = 324,686.76

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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.