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Finding the Fourth Proportional to 328,726.10, 492,801.15 and 223,202.90

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Solution

The fourth proportional to 328,726.10, 492,801.15 and 223,202.90 is: 334,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,726.10 : 492,801.15 = 223,202.90 : x
  2. Step 2: Convert to fraction form
    328,726.10/492,801.15 = 223,202.90/x
  3. Step 3: Cross multiply
    328,726.10x = 492,801.15 × 223,202.90
  4. Step 4: Simplify right side
    328,726.10x = 109,994,645,803.34
  5. Step 5: Solve for x
    x = 109,994,645,803.34/328,726.10
  6. Step 6: Final answer
    x = 334,608.80

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