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Finding the Fourth Proportional to 386,123.12, 532,844.76 and 216,360.56

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Solution

The fourth proportional to 386,123.12, 532,844.76 and 216,360.56 is: 298,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,123.12 : 532,844.76 = 216,360.56 : x
  2. Step 2: Convert to fraction form
    386,123.12/532,844.76 = 216,360.56/x
  3. Step 3: Cross multiply
    386,123.12x = 532,844.76 × 216,360.56
  4. Step 4: Simplify right side
    386,123.12x = 115,286,590,666.67
  5. Step 5: Solve for x
    x = 115,286,590,666.67/386,123.12
  6. Step 6: Final answer
    x = 298,574.69

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