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Finding the Fourth Proportional to 467,527.52, 645,508.15 and 297,991.28

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Solution

The fourth proportional to 467,527.52, 645,508.15 and 297,991.28 is: 411,432.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,527.52 : 645,508.15 = 297,991.28 : x
  2. Step 2: Convert to fraction form
    467,527.52/645,508.15 = 297,991.28/x
  3. Step 3: Cross multiply
    467,527.52x = 645,508.15 × 297,991.28
  4. Step 4: Simplify right side
    467,527.52x = 192,355,795,896.41
  5. Step 5: Solve for x
    x = 192,355,795,896.41/467,527.52
  6. Step 6: Final answer
    x = 411,432.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.