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Finding the Fourth Proportional to 1,819,968.43, 2,729,952.33 and 621,901.03

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Solution

The fourth proportional to 1,819,968.43, 2,729,952.33 and 621,901.03 is: 932,851.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,968.43 : 2,729,952.33 = 621,901.03 : x
  2. Step 2: Convert to fraction form
    1,819,968.43/2,729,952.33 = 621,901.03/x
  3. Step 3: Cross multiply
    1,819,968.43x = 2,729,952.33 × 621,901.03
  4. Step 4: Simplify right side
    1,819,968.43x = 1,697,760,165,877.90
  5. Step 5: Solve for x
    x = 1,697,760,165,877.90/1,819,968.43
  6. Step 6: Final answer
    x = 932,851.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.