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Finding the Fourth Proportional to 219,616.60, 329,424.90 and 216,117.40

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Solution

The fourth proportional to 219,616.60, 329,424.90 and 216,117.40 is: 324,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,616.60 : 329,424.90 = 216,117.40 : x
  2. Step 2: Convert to fraction form
    219,616.60/329,424.90 = 216,117.40/x
  3. Step 3: Cross multiply
    219,616.60x = 329,424.90 × 216,117.40
  4. Step 4: Simplify right side
    219,616.60x = 71,194,452,883.26
  5. Step 5: Solve for x
    x = 71,194,452,883.26/219,616.60
  6. Step 6: Final answer
    x = 324,176.10

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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.