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Finding the Fourth Proportional to 479,193.64, 661,289.07 and 264,330.61

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Solution

The fourth proportional to 479,193.64, 661,289.07 and 264,330.61 is: 364,777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,193.64 : 661,289.07 = 264,330.61 : x
  2. Step 2: Convert to fraction form
    479,193.64/661,289.07 = 264,330.61/x
  3. Step 3: Cross multiply
    479,193.64x = 661,289.07 × 264,330.61
  4. Step 4: Simplify right side
    479,193.64x = 174,798,943,259.43
  5. Step 5: Solve for x
    x = 174,798,943,259.43/479,193.64
  6. Step 6: Final answer
    x = 364,777.26

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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.