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Finding the Fourth Proportional to 1,941,584.06, 2,913,688.30 and 679,422.62

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Solution

The fourth proportional to 1,941,584.06, 2,913,688.30 and 679,422.62 is: 1,019,593.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,584.06 : 2,913,688.30 = 679,422.62 : x
  2. Step 2: Convert to fraction form
    1,941,584.06/2,913,688.30 = 679,422.62/x
  3. Step 3: Cross multiply
    1,941,584.06x = 2,913,688.30 × 679,422.62
  4. Step 4: Simplify right side
    1,941,584.06x = 1,979,625,738,649.35
  5. Step 5: Solve for x
    x = 1,979,625,738,649.35/1,941,584.06
  6. Step 6: Final answer
    x = 1,019,593.11

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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.