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Finding the Fourth Proportional to 401,597.01, 554,218.61 and 229,511.97

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Solution

The fourth proportional to 401,597.01, 554,218.61 and 229,511.97 is: 316,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,597.01 : 554,218.61 = 229,511.97 : x
  2. Step 2: Convert to fraction form
    401,597.01/554,218.61 = 229,511.97/x
  3. Step 3: Cross multiply
    401,597.01x = 554,218.61 × 229,511.97
  4. Step 4: Simplify right side
    401,597.01x = 127,199,803,844.20
  5. Step 5: Solve for x
    x = 127,199,803,844.20/401,597.01
  6. Step 6: Final answer
    x = 316,734.94

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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.