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Finding the Fourth Proportional to 395,561.22, 545,875.11 and 234,495.42

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Solution

The fourth proportional to 395,561.22, 545,875.11 and 234,495.42 is: 323,604.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,561.22 : 545,875.11 = 234,495.42 : x
  2. Step 2: Convert to fraction form
    395,561.22/545,875.11 = 234,495.42/x
  3. Step 3: Cross multiply
    395,561.22x = 545,875.11 × 234,495.42
  4. Step 4: Simplify right side
    395,561.22x = 128,005,213,187.00
  5. Step 5: Solve for x
    x = 128,005,213,187.00/395,561.22
  6. Step 6: Final answer
    x = 323,604.05

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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.