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Finding the Fourth Proportional to 524,871.20, 787,383.60 and 169,824.80

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Solution

The fourth proportional to 524,871.20, 787,383.60 and 169,824.80 is: 254,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,871.20 : 787,383.60 = 169,824.80 : x
  2. Step 2: Convert to fraction form
    524,871.20/787,383.60 = 169,824.80/x
  3. Step 3: Cross multiply
    524,871.20x = 787,383.60 × 169,824.80
  4. Step 4: Simplify right side
    524,871.20x = 133,717,262,393.28
  5. Step 5: Solve for x
    x = 133,717,262,393.28/524,871.20
  6. Step 6: Final answer
    x = 254,762.05

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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.