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Finding the Fourth Proportional to 408,473.30, 563,538.53 and 253,352.84

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Solution

The fourth proportional to 408,473.30, 563,538.53 and 253,352.84 is: 349,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,473.30 : 563,538.53 = 253,352.84 : x
  2. Step 2: Convert to fraction form
    408,473.30/563,538.53 = 253,352.84/x
  3. Step 3: Cross multiply
    408,473.30x = 563,538.53 × 253,352.84
  4. Step 4: Simplify right side
    408,473.30x = 142,774,084,840.62
  5. Step 5: Solve for x
    x = 142,774,084,840.62/408,473.30
  6. Step 6: Final answer
    x = 349,531.01

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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.