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Finding the Fourth Proportional to 338,588.64, 507,982.32 and 151,558.56

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Solution

The fourth proportional to 338,588.64, 507,982.32 and 151,558.56 is: 227,382.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,588.64 : 507,982.32 = 151,558.56 : x
  2. Step 2: Convert to fraction form
    338,588.64/507,982.32 = 151,558.56/x
  3. Step 3: Cross multiply
    338,588.64x = 507,982.32 × 151,558.56
  4. Step 4: Simplify right side
    338,588.64x = 76,989,068,924.66
  5. Step 5: Solve for x
    x = 76,989,068,924.66/338,588.64
  6. Step 6: Final answer
    x = 227,382.32

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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.