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Finding the Fourth Proportional to 378,517.08, 566,071.38 and 336,643.32

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Solution

The fourth proportional to 378,517.08, 566,071.38 and 336,643.32 is: 503,449.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,517.08 : 566,071.38 = 336,643.32 : x
  2. Step 2: Convert to fraction form
    378,517.08/566,071.38 = 336,643.32/x
  3. Step 3: Cross multiply
    378,517.08x = 566,071.38 × 336,643.32
  4. Step 4: Simplify right side
    378,517.08x = 190,564,148,720.18
  5. Step 5: Solve for x
    x = 190,564,148,720.18/378,517.08
  6. Step 6: Final answer
    x = 503,449.27

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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.