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Finding the Fourth Proportional to 610,414.20, 915,402.60 and 310,795.20

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Solution

The fourth proportional to 610,414.20, 915,402.60 and 310,795.20 is: 466,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,414.20 : 915,402.60 = 310,795.20 : x
  2. Step 2: Convert to fraction form
    610,414.20/915,402.60 = 310,795.20/x
  3. Step 3: Cross multiply
    610,414.20x = 915,402.60 × 310,795.20
  4. Step 4: Simplify right side
    610,414.20x = 284,502,734,147.52
  5. Step 5: Solve for x
    x = 284,502,734,147.52/610,414.20
  6. Step 6: Final answer
    x = 466,081.45

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