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Finding the Fourth Proportional to 401,570.52, 554,162.15 and 229,486.51

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Solution

The fourth proportional to 401,570.52, 554,162.15 and 229,486.51 is: 316,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,570.52 : 554,162.15 = 229,486.51 : x
  2. Step 2: Convert to fraction form
    401,570.52/554,162.15 = 229,486.51/x
  3. Step 3: Cross multiply
    401,570.52x = 554,162.15 × 229,486.51
  4. Step 4: Simplify right side
    401,570.52x = 127,172,738,935.64
  5. Step 5: Solve for x
    x = 127,172,738,935.64/401,570.52
  6. Step 6: Final answer
    x = 316,688.43

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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.