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Finding the Fourth Proportional to 988,876.80, 1,483,315.20 and 883,900.80

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Solution

The fourth proportional to 988,876.80, 1,483,315.20 and 883,900.80 is: 1,325,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,876.80 : 1,483,315.20 = 883,900.80 : x
  2. Step 2: Convert to fraction form
    988,876.80/1,483,315.20 = 883,900.80/x
  3. Step 3: Cross multiply
    988,876.80x = 1,483,315.20 × 883,900.80
  4. Step 4: Simplify right side
    988,876.80x = 1,311,103,491,932.16
  5. Step 5: Solve for x
    x = 1,311,103,491,932.16/988,876.80
  6. Step 6: Final answer
    x = 1,325,851.20

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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.