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Finding the Fourth Proportional to 496,766.30, 745,246.65 and 212,456.30

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Solution

The fourth proportional to 496,766.30, 745,246.65 and 212,456.30 is: 318,726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,766.30 : 745,246.65 = 212,456.30 : x
  2. Step 2: Convert to fraction form
    496,766.30/745,246.65 = 212,456.30/x
  3. Step 3: Cross multiply
    496,766.30x = 745,246.65 × 212,456.30
  4. Step 4: Simplify right side
    496,766.30x = 158,332,345,846.40
  5. Step 5: Solve for x
    x = 158,332,345,846.40/496,766.30
  6. Step 6: Final answer
    x = 318,726.02

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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.