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Finding the Fourth Proportional to 627,615.74, 866,110.93 and 341,135.15

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Solution

The fourth proportional to 627,615.74, 866,110.93 and 341,135.15 is: 470,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,615.74 : 866,110.93 = 341,135.15 : x
  2. Step 2: Convert to fraction form
    627,615.74/866,110.93 = 341,135.15/x
  3. Step 3: Cross multiply
    627,615.74x = 866,110.93 × 341,135.15
  4. Step 4: Simplify right side
    627,615.74x = 295,460,876,838.80
  5. Step 5: Solve for x
    x = 295,460,876,838.80/627,615.74
  6. Step 6: Final answer
    x = 470,767.15

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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.