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Finding the Fourth Proportional to 680,003.80, 1,017,672.90 and 624,016.60

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Solution

The fourth proportional to 680,003.80, 1,017,672.90 and 624,016.60 is: 933,884.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,003.80 : 1,017,672.90 = 624,016.60 : x
  2. Step 2: Convert to fraction form
    680,003.80/1,017,672.90 = 624,016.60/x
  3. Step 3: Cross multiply
    680,003.80x = 1,017,672.90 × 624,016.60
  4. Step 4: Simplify right side
    680,003.80x = 635,044,782,970.14
  5. Step 5: Solve for x
    x = 635,044,782,970.14/680,003.80
  6. Step 6: Final answer
    x = 933,884.17

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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.