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Finding the Fourth Proportional to 737,713.60, 1,105,015.20 and 658,916.80

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Solution

The fourth proportional to 737,713.60, 1,105,015.20 and 658,916.80 is: 986,986.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,713.60 : 1,105,015.20 = 658,916.80 : x
  2. Step 2: Convert to fraction form
    737,713.60/1,105,015.20 = 658,916.80/x
  3. Step 3: Cross multiply
    737,713.60x = 1,105,015.20 × 658,916.80
  4. Step 4: Simplify right side
    737,713.60x = 728,113,079,535.36
  5. Step 5: Solve for x
    x = 728,113,079,535.36/737,713.60
  6. Step 6: Final answer
    x = 986,986.11

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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.