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Finding the Fourth Proportional to 219,410.10, 308,059.88 and 219,410.10

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Solution

The fourth proportional to 219,410.10, 308,059.88 and 219,410.10 is: 308,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,410.10 : 308,059.88 = 219,410.10 : x
  2. Step 2: Convert to fraction form
    219,410.10/308,059.88 = 219,410.10/x
  3. Step 3: Cross multiply
    219,410.10x = 308,059.88 × 219,410.10
  4. Step 4: Simplify right side
    219,410.10x = 67,591,447,979.74
  5. Step 5: Solve for x
    x = 67,591,447,979.74/219,410.10
  6. Step 6: Final answer
    x = 308,059.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.