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Finding the Fourth Proportional to 643,598.20, 965,105.70 and 244,106.20

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Solution

The fourth proportional to 643,598.20, 965,105.70 and 244,106.20 is: 366,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,598.20 : 965,105.70 = 244,106.20 : x
  2. Step 2: Convert to fraction form
    643,598.20/965,105.70 = 244,106.20/x
  3. Step 3: Cross multiply
    643,598.20x = 965,105.70 × 244,106.20
  4. Step 4: Simplify right side
    643,598.20x = 235,588,285,025.34
  5. Step 5: Solve for x
    x = 235,588,285,025.34/643,598.20
  6. Step 6: Final answer
    x = 366,048.70

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Double scale
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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.