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Finding the Fourth Proportional to 869,104.80, 1,303,657.20 and 794,455.20

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Solution

The fourth proportional to 869,104.80, 1,303,657.20 and 794,455.20 is: 1,191,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,104.80 : 1,303,657.20 = 794,455.20 : x
  2. Step 2: Convert to fraction form
    869,104.80/1,303,657.20 = 794,455.20/x
  3. Step 3: Cross multiply
    869,104.80x = 1,303,657.20 × 794,455.20
  4. Step 4: Simplify right side
    869,104.80x = 1,035,697,241,557.44
  5. Step 5: Solve for x
    x = 1,035,697,241,557.44/869,104.80
  6. Step 6: Final answer
    x = 1,191,682.80

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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.