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Finding the Fourth Proportional to 552,858.80, 829,288.20 and 272,922.80

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Solution

The fourth proportional to 552,858.80, 829,288.20 and 272,922.80 is: 409,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,858.80 : 829,288.20 = 272,922.80 : x
  2. Step 2: Convert to fraction form
    552,858.80/829,288.20 = 272,922.80/x
  3. Step 3: Cross multiply
    552,858.80x = 829,288.20 × 272,922.80
  4. Step 4: Simplify right side
    552,858.80x = 226,331,657,550.96
  5. Step 5: Solve for x
    x = 226,331,657,550.96/552,858.80
  6. Step 6: Final answer
    x = 409,384.20

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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.