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Finding the Fourth Proportional to 395,671.12, 546,052.94 and 223,529.38

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Solution

The fourth proportional to 395,671.12, 546,052.94 and 223,529.38 is: 308,485.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,671.12 : 546,052.94 = 223,529.38 : x
  2. Step 2: Convert to fraction form
    395,671.12/546,052.94 = 223,529.38/x
  3. Step 3: Cross multiply
    395,671.12x = 546,052.94 × 223,529.38
  4. Step 4: Simplify right side
    395,671.12x = 122,058,875,125.38
  5. Step 5: Solve for x
    x = 122,058,875,125.38/395,671.12
  6. Step 6: Final answer
    x = 308,485.68

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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.