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Finding the Fourth Proportional to 403,585.20, 605,086.20 and 226,146.60

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Solution

The fourth proportional to 403,585.20, 605,086.20 and 226,146.60 is: 339,056.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,585.20 : 605,086.20 = 226,146.60 : x
  2. Step 2: Convert to fraction form
    403,585.20/605,086.20 = 226,146.60/x
  3. Step 3: Cross multiply
    403,585.20x = 605,086.20 × 226,146.60
  4. Step 4: Simplify right side
    403,585.20x = 136,838,186,836.92
  5. Step 5: Solve for x
    x = 136,838,186,836.92/403,585.20
  6. Step 6: Final answer
    x = 339,056.50

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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.