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Finding the Fourth Proportional to 479,072.58, 661,112.28 and 264,232.64

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Solution

The fourth proportional to 479,072.58, 661,112.28 and 264,232.64 is: 364,636.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,072.58 : 661,112.28 = 264,232.64 : x
  2. Step 2: Convert to fraction form
    479,072.58/661,112.28 = 264,232.64/x
  3. Step 3: Cross multiply
    479,072.58x = 661,112.28 × 264,232.64
  4. Step 4: Simplify right side
    479,072.58x = 174,687,439,775.26
  5. Step 5: Solve for x
    x = 174,687,439,775.26/479,072.58
  6. Step 6: Final answer
    x = 364,636.69

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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.