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Finding the Fourth Proportional to 336,896.40, 504,178.20 and 308,902.80

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Solution

The fourth proportional to 336,896.40, 504,178.20 and 308,902.80 is: 462,284.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,896.40 : 504,178.20 = 308,902.80 : x
  2. Step 2: Convert to fraction form
    336,896.40/504,178.20 = 308,902.80/x
  3. Step 3: Cross multiply
    336,896.40x = 504,178.20 × 308,902.80
  4. Step 4: Simplify right side
    336,896.40x = 155,742,057,678.96
  5. Step 5: Solve for x
    x = 155,742,057,678.96/336,896.40
  6. Step 6: Final answer
    x = 462,284.72

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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.