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Finding the Fourth Proportional to 443,396.82, 611,820.44 and 249,776.84

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Solution

The fourth proportional to 443,396.82, 611,820.44 and 249,776.84 is: 344,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,396.82 : 611,820.44 = 249,776.84 : x
  2. Step 2: Convert to fraction form
    443,396.82/611,820.44 = 249,776.84/x
  3. Step 3: Cross multiply
    443,396.82x = 611,820.44 × 249,776.84
  4. Step 4: Simplify right side
    443,396.82x = 152,818,576,150.61
  5. Step 5: Solve for x
    x = 152,818,576,150.61/443,396.82
  6. Step 6: Final answer
    x = 344,654.20

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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.