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Finding the Fourth Proportional to 623,796.66, 860,838.39 and 351,863.73

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Solution

The fourth proportional to 623,796.66, 860,838.39 and 351,863.73 is: 485,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,796.66 : 860,838.39 = 351,863.73 : x
  2. Step 2: Convert to fraction form
    623,796.66/860,838.39 = 351,863.73/x
  3. Step 3: Cross multiply
    623,796.66x = 860,838.39 × 351,863.73
  4. Step 4: Simplify right side
    623,796.66x = 302,897,806,832.60
  5. Step 5: Solve for x
    x = 302,897,806,832.60/623,796.66
  6. Step 6: Final answer
    x = 485,571.38

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1.5x scale

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.