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Finding the Fourth Proportional to 644,508.51, 965,846.22 and 474,693.45

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Solution

The fourth proportional to 644,508.51, 965,846.22 and 474,693.45 is: 711,365.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,508.51 : 965,846.22 = 474,693.45 : x
  2. Step 2: Convert to fraction form
    644,508.51/965,846.22 = 474,693.45/x
  3. Step 3: Cross multiply
    644,508.51x = 965,846.22 × 474,693.45
  4. Step 4: Simplify right side
    644,508.51x = 458,480,874,341.26
  5. Step 5: Solve for x
    x = 458,480,874,341.26/644,508.51
  6. Step 6: Final answer
    x = 711,365.12

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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.