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Finding the Fourth Proportional to 384,461.40, 576,000.90 and 329,165.40

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Solution

The fourth proportional to 384,461.40, 576,000.90 and 329,165.40 is: 493,156.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,461.40 : 576,000.90 = 329,165.40 : x
  2. Step 2: Convert to fraction form
    384,461.40/576,000.90 = 329,165.40/x
  3. Step 3: Cross multiply
    384,461.40x = 576,000.90 × 329,165.40
  4. Step 4: Simplify right side
    384,461.40x = 189,599,566,648.86
  5. Step 5: Solve for x
    x = 189,599,566,648.86/384,461.40
  6. Step 6: Final answer
    x = 493,156.31

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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.