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Finding the Fourth Proportional to 395,692.66, 546,066.04 and 242,815.32

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Solution

The fourth proportional to 395,692.66, 546,066.04 and 242,815.32 is: 335,091.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,692.66 : 546,066.04 = 242,815.32 : x
  2. Step 2: Convert to fraction form
    395,692.66/546,066.04 = 242,815.32/x
  3. Step 3: Cross multiply
    395,692.66x = 546,066.04 × 242,815.32
  4. Step 4: Simplify right side
    395,692.66x = 132,593,200,243.73
  5. Step 5: Solve for x
    x = 132,593,200,243.73/395,692.66
  6. Step 6: Final answer
    x = 335,091.38

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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.