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Finding the Fourth Proportional to 484,166, 668,149.08 and 272,198

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Solution

The fourth proportional to 484,166, 668,149.08 and 272,198 is: 375,633.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,166 : 668,149.08 = 272,198 : x
  2. Step 2: Convert to fraction form
    484,166/668,149.08 = 272,198/x
  3. Step 3: Cross multiply
    484,166x = 668,149.08 × 272,198
  4. Step 4: Simplify right side
    484,166x = 181,868,843,277.84
  5. Step 5: Solve for x
    x = 181,868,843,277.84/484,166
  6. Step 6: Final answer
    x = 375,633.24

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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.