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Finding the Fourth Proportional to 454,420.40, 627,026.40 and 263,396.48

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Solution

The fourth proportional to 454,420.40, 627,026.40 and 263,396.48 is: 363,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,420.40 : 627,026.40 = 263,396.48 : x
  2. Step 2: Convert to fraction form
    454,420.40/627,026.40 = 263,396.48/x
  3. Step 3: Cross multiply
    454,420.40x = 627,026.40 × 263,396.48
  4. Step 4: Simplify right side
    454,420.40x = 165,156,546,627.07
  5. Step 5: Solve for x
    x = 165,156,546,627.07/454,420.40
  6. Step 6: Final answer
    x = 363,444.39

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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.