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Finding the Fourth Proportional to 443,865.26, 612,361.95 and 282,691.46

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Solution

The fourth proportional to 443,865.26, 612,361.95 and 282,691.46 is: 390,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,865.26 : 612,361.95 = 282,691.46 : x
  2. Step 2: Convert to fraction form
    443,865.26/612,361.95 = 282,691.46/x
  3. Step 3: Cross multiply
    443,865.26x = 612,361.95 × 282,691.46
  4. Step 4: Simplify right side
    443,865.26x = 173,109,493,693.95
  5. Step 5: Solve for x
    x = 173,109,493,693.95/443,865.26
  6. Step 6: Final answer
    x = 390,004.60

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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.