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Finding the Fourth Proportional to 677,216.66, 934,523.21 and 386,770.75

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Solution

The fourth proportional to 677,216.66, 934,523.21 and 386,770.75 is: 533,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,216.66 : 934,523.21 = 386,770.75 : x
  2. Step 2: Convert to fraction form
    677,216.66/934,523.21 = 386,770.75/x
  3. Step 3: Cross multiply
    677,216.66x = 934,523.21 × 386,770.75
  4. Step 4: Simplify right side
    677,216.66x = 361,446,241,454.73
  5. Step 5: Solve for x
    x = 361,446,241,454.73/677,216.66
  6. Step 6: Final answer
    x = 533,723.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.