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Finding the Fourth Proportional to 611,997.39, 844,539.61 and 340,058.30

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Solution

The fourth proportional to 611,997.39, 844,539.61 and 340,058.30 is: 469,271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,997.39 : 844,539.61 = 340,058.30 : x
  2. Step 2: Convert to fraction form
    611,997.39/844,539.61 = 340,058.30/x
  3. Step 3: Cross multiply
    611,997.39x = 844,539.61 × 340,058.30
  4. Step 4: Simplify right side
    611,997.39x = 287,192,702,153.44
  5. Step 5: Solve for x
    x = 287,192,702,153.44/611,997.39
  6. Step 6: Final answer
    x = 469,271.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.