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Finding the Fourth Proportional to 306,043.20, 459,064.80 and 164,325.60

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Solution

The fourth proportional to 306,043.20, 459,064.80 and 164,325.60 is: 246,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,043.20 : 459,064.80 = 164,325.60 : x
  2. Step 2: Convert to fraction form
    306,043.20/459,064.80 = 164,325.60/x
  3. Step 3: Cross multiply
    306,043.20x = 459,064.80 × 164,325.60
  4. Step 4: Simplify right side
    306,043.20x = 75,436,098,698.88
  5. Step 5: Solve for x
    x = 75,436,098,698.88/306,043.20
  6. Step 6: Final answer
    x = 246,488.40

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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.