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Finding the Fourth Proportional to 708,663.20, 1,060,402.80 and 522,039.20

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Solution

The fourth proportional to 708,663.20, 1,060,402.80 and 522,039.20 is: 781,149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,663.20 : 1,060,402.80 = 522,039.20 : x
  2. Step 2: Convert to fraction form
    708,663.20/1,060,402.80 = 522,039.20/x
  3. Step 3: Cross multiply
    708,663.20x = 1,060,402.80 × 522,039.20
  4. Step 4: Simplify right side
    708,663.20x = 553,571,829,389.76
  5. Step 5: Solve for x
    x = 553,571,829,389.76/708,663.20
  6. Step 6: Final answer
    x = 781,149.39

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