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Finding the Fourth Proportional to 395,670.87, 546,052.59 and 223,529.13

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Solution

The fourth proportional to 395,670.87, 546,052.59 and 223,529.13 is: 308,485.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,670.87 : 546,052.59 = 223,529.13 : x
  2. Step 2: Convert to fraction form
    395,670.87/546,052.59 = 223,529.13/x
  3. Step 3: Cross multiply
    395,670.87x = 546,052.59 × 223,529.13
  4. Step 4: Simplify right side
    395,670.87x = 122,058,660,376.95
  5. Step 5: Solve for x
    x = 122,058,660,376.95/395,670.87
  6. Step 6: Final answer
    x = 308,485.33

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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.