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Finding the Fourth Proportional to 349,416.80, 524,125.20 and 223,445.60

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Solution

The fourth proportional to 349,416.80, 524,125.20 and 223,445.60 is: 335,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,416.80 : 524,125.20 = 223,445.60 : x
  2. Step 2: Convert to fraction form
    349,416.80/524,125.20 = 223,445.60/x
  3. Step 3: Cross multiply
    349,416.80x = 524,125.20 × 223,445.60
  4. Step 4: Simplify right side
    349,416.80x = 117,113,469,789.12
  5. Step 5: Solve for x
    x = 117,113,469,789.12/349,416.80
  6. Step 6: Final answer
    x = 335,168.40

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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.