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Finding the Fourth Proportional to 363,856.80, 545,785.20 and 223,694.40

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Solution

The fourth proportional to 363,856.80, 545,785.20 and 223,694.40 is: 335,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,856.80 : 545,785.20 = 223,694.40 : x
  2. Step 2: Convert to fraction form
    363,856.80/545,785.20 = 223,694.40/x
  3. Step 3: Cross multiply
    363,856.80x = 545,785.20 × 223,694.40
  4. Step 4: Simplify right side
    363,856.80x = 122,089,092,842.88
  5. Step 5: Solve for x
    x = 122,089,092,842.88/363,856.80
  6. Step 6: Final answer
    x = 335,541.60

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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.