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Finding the Fourth Proportional to 449,372.61, 619,849.42 and 341,706.60

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Solution

The fourth proportional to 449,372.61, 619,849.42 and 341,706.60 is: 471,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,372.61 : 619,849.42 = 341,706.60 : x
  2. Step 2: Convert to fraction form
    449,372.61/619,849.42 = 341,706.60/x
  3. Step 3: Cross multiply
    449,372.61x = 619,849.42 × 341,706.60
  4. Step 4: Simplify right side
    449,372.61x = 211,806,637,820.17
  5. Step 5: Solve for x
    x = 211,806,637,820.17/449,372.61
  6. Step 6: Final answer
    x = 471,338.56

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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.