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Finding the Fourth Proportional to 561,694.40, 844,291.20 and 551,196.80

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Solution

The fourth proportional to 561,694.40, 844,291.20 and 551,196.80 is: 828,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,694.40 : 844,291.20 = 551,196.80 : x
  2. Step 2: Convert to fraction form
    561,694.40/844,291.20 = 551,196.80/x
  3. Step 3: Cross multiply
    561,694.40x = 844,291.20 × 551,196.80
  4. Step 4: Simplify right side
    561,694.40x = 465,370,607,708.16
  5. Step 5: Solve for x
    x = 465,370,607,708.16/561,694.40
  6. Step 6: Final answer
    x = 828,512.10

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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.