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Finding the Fourth Proportional to 3,842,802.78, 5,764,112.29 and 1,249,104.29

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Solution

The fourth proportional to 3,842,802.78, 5,764,112.29 and 1,249,104.29 is: 1,873,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,842,802.78 : 5,764,112.29 = 1,249,104.29 : x
  2. Step 2: Convert to fraction form
    3,842,802.78/5,764,112.29 = 1,249,104.29/x
  3. Step 3: Cross multiply
    3,842,802.78x = 5,764,112.29 × 1,249,104.29
  4. Step 4: Simplify right side
    3,842,802.78x = 7,199,977,396,401.29
  5. Step 5: Solve for x
    x = 7,199,977,396,401.29/3,842,802.78
  6. Step 6: Final answer
    x = 1,873,626.57

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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.