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Finding the Fourth Proportional to 329,328.60, 493,701.30 and 217,062.60

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Solution

The fourth proportional to 329,328.60, 493,701.30 and 217,062.60 is: 325,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,328.60 : 493,701.30 = 217,062.60 : x
  2. Step 2: Convert to fraction form
    329,328.60/493,701.30 = 217,062.60/x
  3. Step 3: Cross multiply
    329,328.60x = 493,701.30 × 217,062.60
  4. Step 4: Simplify right side
    329,328.60x = 107,164,087,801.38
  5. Step 5: Solve for x
    x = 107,164,087,801.38/329,328.60
  6. Step 6: Final answer
    x = 325,401.70

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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.