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Finding the Fourth Proportional to 440,622, 608,058.36 and 261,774

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Solution

The fourth proportional to 440,622, 608,058.36 and 261,774 is: 361,248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,622 : 608,058.36 = 261,774 : x
  2. Step 2: Convert to fraction form
    440,622/608,058.36 = 261,774/x
  3. Step 3: Cross multiply
    440,622x = 608,058.36 × 261,774
  4. Step 4: Simplify right side
    440,622x = 159,173,869,130.64
  5. Step 5: Solve for x
    x = 159,173,869,130.64/440,622
  6. Step 6: Final answer
    x = 361,248.12

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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.