Home / 1,943,105.40-2,913,621.30-819,905.40

Finding the Fourth Proportional to 1,943,105.40, 2,913,621.30 and 819,905.40

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Solution

The fourth proportional to 1,943,105.40, 2,913,621.30 and 819,905.40 is: 1,229,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,105.40 : 2,913,621.30 = 819,905.40 : x
  2. Step 2: Convert to fraction form
    1,943,105.40/2,913,621.30 = 819,905.40/x
  3. Step 3: Cross multiply
    1,943,105.40x = 2,913,621.30 × 819,905.40
  4. Step 4: Simplify right side
    1,943,105.40x = 2,388,893,837,425.02
  5. Step 5: Solve for x
    x = 2,388,893,837,425.02/1,943,105.40
  6. Step 6: Final answer
    x = 1,229,420.62

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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.