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Finding the Fourth Proportional to 443,691.16, 612,419.40 and 262,466.09

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Solution

The fourth proportional to 443,691.16, 612,419.40 and 262,466.09 is: 362,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,691.16 : 612,419.40 = 262,466.09 : x
  2. Step 2: Convert to fraction form
    443,691.16/612,419.40 = 262,466.09/x
  3. Step 3: Cross multiply
    443,691.16x = 612,419.40 × 262,466.09
  4. Step 4: Simplify right side
    443,691.16x = 160,739,325,358.15
  5. Step 5: Solve for x
    x = 160,739,325,358.15/443,691.16
  6. Step 6: Final answer
    x = 362,277.50

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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.