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Finding the Fourth Proportional to 329,318.60, 493,686.30 and 217,052.60

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Solution

The fourth proportional to 329,318.60, 493,686.30 and 217,052.60 is: 325,386.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,318.60 : 493,686.30 = 217,052.60 : x
  2. Step 2: Convert to fraction form
    329,318.60/493,686.30 = 217,052.60/x
  3. Step 3: Cross multiply
    329,318.60x = 493,686.30 × 217,052.60
  4. Step 4: Simplify right side
    329,318.60x = 107,155,894,999.38
  5. Step 5: Solve for x
    x = 107,155,894,999.38/329,318.60
  6. Step 6: Final answer
    x = 325,386.71

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1.5x scale

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.