Home / 643,501.91-965,507.10-244,248.66

Finding the Fourth Proportional to 643,501.91, 965,507.10 and 244,248.66

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Solution

The fourth proportional to 643,501.91, 965,507.10 and 244,248.66 is: 366,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,501.91 : 965,507.10 = 244,248.66 : x
  2. Step 2: Convert to fraction form
    643,501.91/965,507.10 = 244,248.66/x
  3. Step 3: Cross multiply
    643,501.91x = 965,507.10 × 244,248.66
  4. Step 4: Simplify right side
    643,501.91x = 235,823,815,395.49
  5. Step 5: Solve for x
    x = 235,823,815,395.49/643,501.91
  6. Step 6: Final answer
    x = 366,469.49

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Double scale
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Similar ratio
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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.