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Finding the Fourth Proportional to 414,438.46, 621,655.63 and 358,107.15

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Solution

The fourth proportional to 414,438.46, 621,655.63 and 358,107.15 is: 537,158.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,438.46 : 621,655.63 = 358,107.15 : x
  2. Step 2: Convert to fraction form
    414,438.46/621,655.63 = 358,107.15/x
  3. Step 3: Cross multiply
    414,438.46x = 621,655.63 × 358,107.15
  4. Step 4: Simplify right side
    414,438.46x = 222,619,324,057.18
  5. Step 5: Solve for x
    x = 222,619,324,057.18/414,438.46
  6. Step 6: Final answer
    x = 537,158.94

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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.