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Finding the Fourth Proportional to 330,912.60, 496,574.10 and 173,254.20

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Solution

The fourth proportional to 330,912.60, 496,574.10 and 173,254.20 is: 259,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,912.60 : 496,574.10 = 173,254.20 : x
  2. Step 2: Convert to fraction form
    330,912.60/496,574.10 = 173,254.20/x
  3. Step 3: Cross multiply
    330,912.60x = 496,574.10 × 173,254.20
  4. Step 4: Simplify right side
    330,912.60x = 86,033,548,436.22
  5. Step 5: Solve for x
    x = 86,033,548,436.22/330,912.60
  6. Step 6: Final answer
    x = 259,988.74

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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.