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Finding the Fourth Proportional to 449,214.39, 619,692.17 and 267,798.51

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Solution

The fourth proportional to 449,214.39, 619,692.17 and 267,798.51 is: 369,428.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,214.39 : 619,692.17 = 267,798.51 : x
  2. Step 2: Convert to fraction form
    449,214.39/619,692.17 = 267,798.51/x
  3. Step 3: Cross multiply
    449,214.39x = 619,692.17 × 267,798.51
  4. Step 4: Simplify right side
    449,214.39x = 165,952,638,445.67
  5. Step 5: Solve for x
    x = 165,952,638,445.67/449,214.39
  6. Step 6: Final answer
    x = 369,428.59

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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.