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Finding the Fourth Proportional to 1,973,734.61, 2,958,216.26 and 961,339.50

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Solution

The fourth proportional to 1,973,734.61, 2,958,216.26 and 961,339.50 is: 1,440,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,734.61 : 2,958,216.26 = 961,339.50 : x
  2. Step 2: Convert to fraction form
    1,973,734.61/2,958,216.26 = 961,339.50/x
  3. Step 3: Cross multiply
    1,973,734.61x = 2,958,216.26 × 961,339.50
  4. Step 4: Simplify right side
    1,973,734.61x = 2,843,850,135,473.57
  5. Step 5: Solve for x
    x = 2,843,850,135,473.57/1,973,734.61
  6. Step 6: Final answer
    x = 1,440,847.28

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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.