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Finding the Fourth Proportional to 366,328.84, 505,538.86 and 238,931.32

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Solution

The fourth proportional to 366,328.84, 505,538.86 and 238,931.32 is: 329,728.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,328.84 : 505,538.86 = 238,931.32 : x
  2. Step 2: Convert to fraction form
    366,328.84/505,538.86 = 238,931.32/x
  3. Step 3: Cross multiply
    366,328.84x = 505,538.86 × 238,931.32
  4. Step 4: Simplify right side
    366,328.84x = 120,789,067,131.10
  5. Step 5: Solve for x
    x = 120,789,067,131.10/366,328.84
  6. Step 6: Final answer
    x = 329,728.52

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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.