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Finding the Fourth Proportional to 329,797.20, 493,140.60 and 245,816.40

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Solution

The fourth proportional to 329,797.20, 493,140.60 and 245,816.40 is: 367,565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,797.20 : 493,140.60 = 245,816.40 : x
  2. Step 2: Convert to fraction form
    329,797.20/493,140.60 = 245,816.40/x
  3. Step 3: Cross multiply
    329,797.20x = 493,140.60 × 245,816.40
  4. Step 4: Simplify right side
    329,797.20x = 121,222,046,985.84
  5. Step 5: Solve for x
    x = 121,222,046,985.84/329,797.20
  6. Step 6: Final answer
    x = 367,565.42

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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.