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Finding the Fourth Proportional to 1,318,806, 1,819,953.36 and 715,194

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Solution

The fourth proportional to 1,318,806, 1,819,953.36 and 715,194 is: 986,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,806 : 1,819,953.36 = 715,194 : x
  2. Step 2: Convert to fraction form
    1,318,806/1,819,953.36 = 715,194/x
  3. Step 3: Cross multiply
    1,318,806x = 1,819,953.36 × 715,194
  4. Step 4: Simplify right side
    1,318,806x = 1,301,619,723,351.84
  5. Step 5: Solve for x
    x = 1,301,619,723,351.84/1,318,806
  6. Step 6: Final answer
    x = 986,968.31

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Why These Related Problems?

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