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Finding the Fourth Proportional to 561,692.40, 844,288.20 and 551,194.80

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Solution

The fourth proportional to 561,692.40, 844,288.20 and 551,194.80 is: 828,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,692.40 : 844,288.20 = 551,194.80 : x
  2. Step 2: Convert to fraction form
    561,692.40/844,288.20 = 551,194.80/x
  3. Step 3: Cross multiply
    561,692.40x = 844,288.20 × 551,194.80
  4. Step 4: Simplify right side
    561,692.40x = 465,367,265,541.36
  5. Step 5: Solve for x
    x = 465,367,265,541.36/561,692.40
  6. Step 6: Final answer
    x = 828,509.10

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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.