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Finding the Fourth Proportional to 608,640.60, 913,709.70 and 384,000.60

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Solution

The fourth proportional to 608,640.60, 913,709.70 and 384,000.60 is: 576,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,640.60 : 913,709.70 = 384,000.60 : x
  2. Step 2: Convert to fraction form
    608,640.60/913,709.70 = 384,000.60/x
  3. Step 3: Cross multiply
    608,640.60x = 913,709.70 × 384,000.60
  4. Step 4: Simplify right side
    608,640.60x = 350,865,073,025.82
  5. Step 5: Solve for x
    x = 350,865,073,025.82/608,640.60
  6. Step 6: Final answer
    x = 576,473.33

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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.