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Finding the Fourth Proportional to 478,017.45, 659,668.46 and 263,162.25

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Solution

The fourth proportional to 478,017.45, 659,668.46 and 263,162.25 is: 363,166.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,017.45 : 659,668.46 = 263,162.25 : x
  2. Step 2: Convert to fraction form
    478,017.45/659,668.46 = 263,162.25/x
  3. Step 3: Cross multiply
    478,017.45x = 659,668.46 × 263,162.25
  4. Step 4: Simplify right side
    478,017.45x = 173,599,834,871.82
  5. Step 5: Solve for x
    x = 173,599,834,871.82/478,017.45
  6. Step 6: Final answer
    x = 363,166.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.