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Finding the Fourth Proportional to 644,064.70, 965,805.45 and 244,572.70

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Solution

The fourth proportional to 644,064.70, 965,805.45 and 244,572.70 is: 366,748.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,064.70 : 965,805.45 = 244,572.70 : x
  2. Step 2: Convert to fraction form
    644,064.70/965,805.45 = 244,572.70/x
  3. Step 3: Cross multiply
    644,064.70x = 965,805.45 × 244,572.70
  4. Step 4: Simplify right side
    644,064.70x = 236,209,646,581.22
  5. Step 5: Solve for x
    x = 236,209,646,581.22/644,064.70
  6. Step 6: Final answer
    x = 366,748.32

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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.