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Finding the Fourth Proportional to 329,615.78, 493,617.28 and 297,667.00

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Solution

The fourth proportional to 329,615.78, 493,617.28 and 297,667.00 is: 445,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,615.78 : 493,617.28 = 297,667.00 : x
  2. Step 2: Convert to fraction form
    329,615.78/493,617.28 = 297,667.00/x
  3. Step 3: Cross multiply
    329,615.78x = 493,617.28 × 297,667.00
  4. Step 4: Simplify right side
    329,615.78x = 146,933,572,417.67
  5. Step 5: Solve for x
    x = 146,933,572,417.67/329,615.78
  6. Step 6: Final answer
    x = 445,772.27

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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.