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Finding the Fourth Proportional to 346,967.40, 520,062.30 and 178,422.60

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Solution

The fourth proportional to 346,967.40, 520,062.30 and 178,422.60 is: 267,433.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,967.40 : 520,062.30 = 178,422.60 : x
  2. Step 2: Convert to fraction form
    346,967.40/520,062.30 = 178,422.60/x
  3. Step 3: Cross multiply
    346,967.40x = 520,062.30 × 178,422.60
  4. Step 4: Simplify right side
    346,967.40x = 92,790,867,727.98
  5. Step 5: Solve for x
    x = 92,790,867,727.98/346,967.40
  6. Step 6: Final answer
    x = 267,433.97

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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.