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Finding the Fourth Proportional to 443,704.68, 612,438.03 and 262,479.60

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Solution

The fourth proportional to 443,704.68, 612,438.03 and 262,479.60 is: 362,296.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,704.68 : 612,438.03 = 262,479.60 : x
  2. Step 2: Convert to fraction form
    443,704.68/612,438.03 = 262,479.60/x
  3. Step 3: Cross multiply
    443,704.68x = 612,438.03 × 262,479.60
  4. Step 4: Simplify right side
    443,704.68x = 160,752,489,139.19
  5. Step 5: Solve for x
    x = 160,752,489,139.19/443,704.68
  6. Step 6: Final answer
    x = 362,296.13

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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.