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Finding the Fourth Proportional to 401,674.80, 554,311.17 and 229,596.45

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Solution

The fourth proportional to 401,674.80, 554,311.17 and 229,596.45 is: 316,843.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,674.80 : 554,311.17 = 229,596.45 : x
  2. Step 2: Convert to fraction form
    401,674.80/554,311.17 = 229,596.45/x
  3. Step 3: Cross multiply
    401,674.80x = 554,311.17 × 229,596.45
  4. Step 4: Simplify right side
    401,674.80x = 127,267,876,827.35
  5. Step 5: Solve for x
    x = 127,267,876,827.35/401,674.80
  6. Step 6: Final answer
    x = 316,843.07

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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.