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Finding the Fourth Proportional to 535,204.80, 802,807.20 and 336,139.20

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Solution

The fourth proportional to 535,204.80, 802,807.20 and 336,139.20 is: 504,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,204.80 : 802,807.20 = 336,139.20 : x
  2. Step 2: Convert to fraction form
    535,204.80/802,807.20 = 336,139.20/x
  3. Step 3: Cross multiply
    535,204.80x = 802,807.20 × 336,139.20
  4. Step 4: Simplify right side
    535,204.80x = 269,854,969,962.24
  5. Step 5: Solve for x
    x = 269,854,969,962.24/535,204.80
  6. Step 6: Final answer
    x = 504,208.80

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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.