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Finding the Fourth Proportional to 395,670.12, 546,051.56 and 223,528.38

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Solution

The fourth proportional to 395,670.12, 546,051.56 and 223,528.38 is: 308,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,670.12 : 546,051.56 = 223,528.38 : x
  2. Step 2: Convert to fraction form
    395,670.12/546,051.56 = 223,528.38/x
  3. Step 3: Cross multiply
    395,670.12x = 546,051.56 × 223,528.38
  4. Step 4: Simplify right side
    395,670.12x = 122,058,019,485.63
  5. Step 5: Solve for x
    x = 122,058,019,485.63/395,670.12
  6. Step 6: Final answer
    x = 308,484.30

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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.