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Finding the Fourth Proportional to 479,600.72, 661,885.64 and 264,782.16

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Solution

The fourth proportional to 479,600.72, 661,885.64 and 264,782.16 is: 365,419.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,600.72 : 661,885.64 = 264,782.16 : x
  2. Step 2: Convert to fraction form
    479,600.72/661,885.64 = 264,782.16/x
  3. Step 3: Cross multiply
    479,600.72x = 661,885.64 × 264,782.16
  4. Step 4: Simplify right side
    479,600.72x = 175,255,509,432.18
  5. Step 5: Solve for x
    x = 175,255,509,432.18/479,600.72
  6. Step 6: Final answer
    x = 365,419.61

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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.