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Finding the Fourth Proportional to 443,777.12, 665,831.96 and 230,411.84

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Solution

The fourth proportional to 443,777.12, 665,831.96 and 230,411.84 is: 345,704.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,777.12 : 665,831.96 = 230,411.84 : x
  2. Step 2: Convert to fraction form
    443,777.12/665,831.96 = 230,411.84/x
  3. Step 3: Cross multiply
    443,777.12x = 665,831.96 × 230,411.84
  4. Step 4: Simplify right side
    443,777.12x = 153,415,567,034.41
  5. Step 5: Solve for x
    x = 153,415,567,034.41/443,777.12
  6. Step 6: Final answer
    x = 345,704.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.