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Finding the Fourth Proportional to 643,902.21, 965,852.51 and 244,542.24

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Solution

The fourth proportional to 643,902.21, 965,852.51 and 244,542.24 is: 366,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,902.21 : 965,852.51 = 244,542.24 : x
  2. Step 2: Convert to fraction form
    643,902.21/965,852.51 = 244,542.24/x
  3. Step 3: Cross multiply
    643,902.21x = 965,852.51 × 244,542.24
  4. Step 4: Simplify right side
    643,902.21x = 236,191,735,082.31
  5. Step 5: Solve for x
    x = 236,191,735,082.31/643,902.21
  6. Step 6: Final answer
    x = 366,813.05

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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.