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Finding the Fourth Proportional to 708,167.43, 977,240.49 and 402,242.86

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Solution

The fourth proportional to 708,167.43, 977,240.49 and 402,242.86 is: 555,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,167.43 : 977,240.49 = 402,242.86 : x
  2. Step 2: Convert to fraction form
    708,167.43/977,240.49 = 402,242.86/x
  3. Step 3: Cross multiply
    708,167.43x = 977,240.49 × 402,242.86
  4. Step 4: Simplify right side
    708,167.43x = 393,088,007,162.30
  5. Step 5: Solve for x
    x = 393,088,007,162.30/708,167.43
  6. Step 6: Final answer
    x = 555,077.78

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