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Finding the Fourth Proportional to 1,968,856.86, 2,953,451.88 and 548,914.20

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Solution

The fourth proportional to 1,968,856.86, 2,953,451.88 and 548,914.20 is: 823,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,856.86 : 2,953,451.88 = 548,914.20 : x
  2. Step 2: Convert to fraction form
    1,968,856.86/2,953,451.88 = 548,914.20/x
  3. Step 3: Cross multiply
    1,968,856.86x = 2,953,451.88 × 548,914.20
  4. Step 4: Simplify right side
    1,968,856.86x = 1,621,191,675,948.70
  5. Step 5: Solve for x
    x = 1,621,191,675,948.70/1,968,856.86
  6. Step 6: Final answer
    x = 823,417.75

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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.