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Finding the Fourth Proportional to 414,926.70, 622,390.05 and 134,443.95

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Solution

The fourth proportional to 414,926.70, 622,390.05 and 134,443.95 is: 201,665.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,926.70 : 622,390.05 = 134,443.95 : x
  2. Step 2: Convert to fraction form
    414,926.70/622,390.05 = 134,443.95/x
  3. Step 3: Cross multiply
    414,926.70x = 622,390.05 × 134,443.95
  4. Step 4: Simplify right side
    414,926.70x = 83,676,576,762.70
  5. Step 5: Solve for x
    x = 83,676,576,762.70/414,926.70
  6. Step 6: Final answer
    x = 201,665.93

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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.