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Finding the Fourth Proportional to 451,616.66, 677,878.60 and 401,344.82

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Solution

The fourth proportional to 451,616.66, 677,878.60 and 401,344.82 is: 602,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,616.66 : 677,878.60 = 401,344.82 : x
  2. Step 2: Convert to fraction form
    451,616.66/677,878.60 = 401,344.82/x
  3. Step 3: Cross multiply
    451,616.66x = 677,878.60 × 401,344.82
  4. Step 4: Simplify right side
    451,616.66x = 272,063,064,698.85
  5. Step 5: Solve for x
    x = 272,063,064,698.85/451,616.66
  6. Step 6: Final answer
    x = 602,420.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.