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Finding the Fourth Proportional to 329,319.60, 493,979.40 and 118,964.40

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Solution

The fourth proportional to 329,319.60, 493,979.40 and 118,964.40 is: 178,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,319.60 : 493,979.40 = 118,964.40 : x
  2. Step 2: Convert to fraction form
    329,319.60/493,979.40 = 118,964.40/x
  3. Step 3: Cross multiply
    329,319.60x = 493,979.40 × 118,964.40
  4. Step 4: Simplify right side
    329,319.60x = 58,765,962,933.36
  5. Step 5: Solve for x
    x = 58,765,962,933.36/329,319.60
  6. Step 6: Final answer
    x = 178,446.60

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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.