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Finding the Fourth Proportional to 719,343.18, 996,891.30 and 709,195.50

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Solution

The fourth proportional to 719,343.18, 996,891.30 and 709,195.50 is: 982,828.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,343.18 : 996,891.30 = 709,195.50 : x
  2. Step 2: Convert to fraction form
    719,343.18/996,891.30 = 709,195.50/x
  3. Step 3: Cross multiply
    719,343.18x = 996,891.30 × 709,195.50
  4. Step 4: Simplify right side
    719,343.18x = 706,990,823,949.15
  5. Step 5: Solve for x
    x = 706,990,823,949.15/719,343.18
  6. Step 6: Final answer
    x = 982,828.29

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.