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Finding the Fourth Proportional to 414,479.52, 621,653.04 and 148,190.40

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Solution

The fourth proportional to 414,479.52, 621,653.04 and 148,190.40 is: 222,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,479.52 : 621,653.04 = 148,190.40 : x
  2. Step 2: Convert to fraction form
    414,479.52/621,653.04 = 148,190.40/x
  3. Step 3: Cross multiply
    414,479.52x = 621,653.04 × 148,190.40
  4. Step 4: Simplify right side
    414,479.52x = 92,123,012,658.82
  5. Step 5: Solve for x
    x = 92,123,012,658.82/414,479.52
  6. Step 6: Final answer
    x = 222,261.92

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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.