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Finding the Fourth Proportional to 561,729.40, 844,343.70 and 551,231.80

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Solution

The fourth proportional to 561,729.40, 844,343.70 and 551,231.80 is: 828,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,729.40 : 844,343.70 = 551,231.80 : x
  2. Step 2: Convert to fraction form
    561,729.40/844,343.70 = 551,231.80/x
  3. Step 3: Cross multiply
    561,729.40x = 844,343.70 × 551,231.80
  4. Step 4: Simplify right side
    561,729.40x = 465,429,097,569.66
  5. Step 5: Solve for x
    x = 465,429,097,569.66/561,729.40
  6. Step 6: Final answer
    x = 828,564.60

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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.