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Finding the Fourth Proportional to 395,695.90, 546,087.12 and 223,554.16

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Solution

The fourth proportional to 395,695.90, 546,087.12 and 223,554.16 is: 308,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,695.90 : 546,087.12 = 223,554.16 : x
  2. Step 2: Convert to fraction form
    395,695.90/546,087.12 = 223,554.16/x
  3. Step 3: Cross multiply
    395,695.90x = 546,087.12 × 223,554.16
  4. Step 4: Simplify right side
    395,695.90x = 122,080,047,398.42
  5. Step 5: Solve for x
    x = 122,080,047,398.42/395,695.90
  6. Step 6: Final answer
    x = 308,519.87

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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.