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Finding the Fourth Proportional to 478,494.81, 717,853.32 and 162,954.45

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Solution

The fourth proportional to 478,494.81, 717,853.32 and 162,954.45 is: 244,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,494.81 : 717,853.32 = 162,954.45 : x
  2. Step 2: Convert to fraction form
    478,494.81/717,853.32 = 162,954.45/x
  3. Step 3: Cross multiply
    478,494.81x = 717,853.32 × 162,954.45
  4. Step 4: Simplify right side
    478,494.81x = 116,977,392,941.27
  5. Step 5: Solve for x
    x = 116,977,392,941.27/478,494.81
  6. Step 6: Final answer
    x = 244,469.51

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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.