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Finding the Fourth Proportional to 374,601.71, 516,935.12 and 213,443.10

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Solution

The fourth proportional to 374,601.71, 516,935.12 and 213,443.10 is: 294,542.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,601.71 : 516,935.12 = 213,443.10 : x
  2. Step 2: Convert to fraction form
    374,601.71/516,935.12 = 213,443.10/x
  3. Step 3: Cross multiply
    374,601.71x = 516,935.12 × 213,443.10
  4. Step 4: Simplify right side
    374,601.71x = 110,336,233,444.46
  5. Step 5: Solve for x
    x = 110,336,233,444.46/374,601.71
  6. Step 6: Final answer
    x = 294,542.79

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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.