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Finding the Fourth Proportional to 883,478.80, 1,325,218.20 and 746,621.20

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Solution

The fourth proportional to 883,478.80, 1,325,218.20 and 746,621.20 is: 1,119,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,478.80 : 1,325,218.20 = 746,621.20 : x
  2. Step 2: Convert to fraction form
    883,478.80/1,325,218.20 = 746,621.20/x
  3. Step 3: Cross multiply
    883,478.80x = 1,325,218.20 × 746,621.20
  4. Step 4: Simplify right side
    883,478.80x = 989,436,002,745.84
  5. Step 5: Solve for x
    x = 989,436,002,745.84/883,478.80
  6. Step 6: Final answer
    x = 1,119,931.80

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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.