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Finding the Fourth Proportional to 881,603.10, 1,325,223.45 and 819,200.70

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Solution

The fourth proportional to 881,603.10, 1,325,223.45 and 819,200.70 is: 1,231,420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,603.10 : 1,325,223.45 = 819,200.70 : x
  2. Step 2: Convert to fraction form
    881,603.10/1,325,223.45 = 819,200.70/x
  3. Step 3: Cross multiply
    881,603.10x = 1,325,223.45 × 819,200.70
  4. Step 4: Simplify right side
    881,603.10x = 1,085,623,977,896.41
  5. Step 5: Solve for x
    x = 1,085,623,977,896.41/881,603.10
  6. Step 6: Final answer
    x = 1,231,420.33

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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.