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Finding the Fourth Proportional to 719,716.88, 992,216.04 and 515,933.84

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Solution

The fourth proportional to 719,716.88, 992,216.04 and 515,933.84 is: 711,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,716.88 : 992,216.04 = 515,933.84 : x
  2. Step 2: Convert to fraction form
    719,716.88/992,216.04 = 515,933.84/x
  3. Step 3: Cross multiply
    719,716.88x = 992,216.04 × 515,933.84
  4. Step 4: Simplify right side
    719,716.88x = 511,917,831,626.79
  5. Step 5: Solve for x
    x = 511,917,831,626.79/719,716.88
  6. Step 6: Final answer
    x = 711,276.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.