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Finding the Fourth Proportional to 883,601.80, 1,325,402.70 and 818,647.90

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Solution

The fourth proportional to 883,601.80, 1,325,402.70 and 818,647.90 is: 1,227,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,601.80 : 1,325,402.70 = 818,647.90 : x
  2. Step 2: Convert to fraction form
    883,601.80/1,325,402.70 = 818,647.90/x
  3. Step 3: Cross multiply
    883,601.80x = 1,325,402.70 × 818,647.90
  4. Step 4: Simplify right side
    883,601.80x = 1,085,038,137,009.33
  5. Step 5: Solve for x
    x = 1,085,038,137,009.33/883,601.80
  6. Step 6: Final answer
    x = 1,227,971.85

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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.