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Finding the Fourth Proportional to 336,572.40, 504,244.20 and 205,090.80

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Solution

The fourth proportional to 336,572.40, 504,244.20 and 205,090.80 is: 307,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,572.40 : 504,244.20 = 205,090.80 : x
  2. Step 2: Convert to fraction form
    336,572.40/504,244.20 = 205,090.80/x
  3. Step 3: Cross multiply
    336,572.40x = 504,244.20 × 205,090.80
  4. Step 4: Simplify right side
    336,572.40x = 103,415,846,373.36
  5. Step 5: Solve for x
    x = 103,415,846,373.36/336,572.40
  6. Step 6: Final answer
    x = 307,261.81

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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.