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Finding the Fourth Proportional to 322,047.80, 483,071.70 and 247,311.80

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Solution

The fourth proportional to 322,047.80, 483,071.70 and 247,311.80 is: 370,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,047.80 : 483,071.70 = 247,311.80 : x
  2. Step 2: Convert to fraction form
    322,047.80/483,071.70 = 247,311.80/x
  3. Step 3: Cross multiply
    322,047.80x = 483,071.70 × 247,311.80
  4. Step 4: Simplify right side
    322,047.80x = 119,469,331,656.06
  5. Step 5: Solve for x
    x = 119,469,331,656.06/322,047.80
  6. Step 6: Final answer
    x = 370,967.70

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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.