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Finding the Fourth Proportional to 216,062.40, 323,592.48 and 208,586.88

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Solution

The fourth proportional to 216,062.40, 323,592.48 and 208,586.88 is: 312,396.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,062.40 : 323,592.48 = 208,586.88 : x
  2. Step 2: Convert to fraction form
    216,062.40/323,592.48 = 208,586.88/x
  3. Step 3: Cross multiply
    216,062.40x = 323,592.48 × 208,586.88
  4. Step 4: Simplify right side
    216,062.40x = 67,497,145,794.66
  5. Step 5: Solve for x
    x = 67,497,145,794.66/216,062.40
  6. Step 6: Final answer
    x = 312,396.54

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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.