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Finding the Fourth Proportional to 469,144.80, 647,420.51 and 254,284.81

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Solution

The fourth proportional to 469,144.80, 647,420.51 and 254,284.81 is: 350,913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,144.80 : 647,420.51 = 254,284.81 : x
  2. Step 2: Convert to fraction form
    469,144.80/647,420.51 = 254,284.81/x
  3. Step 3: Cross multiply
    469,144.80x = 647,420.51 × 254,284.81
  4. Step 4: Simplify right side
    469,144.80x = 164,629,201,375.45
  5. Step 5: Solve for x
    x = 164,629,201,375.45/469,144.80
  6. Step 6: Final answer
    x = 350,913.41

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1.5x scale

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.