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Finding the Fourth Proportional to 469,416.80, 647,795.36 and 254,556.81

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Solution

The fourth proportional to 469,416.80, 647,795.36 and 254,556.81 is: 351,288.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,416.80 : 647,795.36 = 254,556.81 : x
  2. Step 2: Convert to fraction form
    469,416.80/647,795.36 = 254,556.81/x
  3. Step 3: Cross multiply
    469,416.80x = 647,795.36 × 254,556.81
  4. Step 4: Simplify right side
    469,416.80x = 164,900,715,862.64
  5. Step 5: Solve for x
    x = 164,900,715,862.64/469,416.80
  6. Step 6: Final answer
    x = 351,288.49

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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.