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Finding the Fourth Proportional to 814,339.76, 1,123,791.74 and 451,770.80

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Solution

The fourth proportional to 814,339.76, 1,123,791.74 and 451,770.80 is: 623,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,339.76 : 1,123,791.74 = 451,770.80 : x
  2. Step 2: Convert to fraction form
    814,339.76/1,123,791.74 = 451,770.80/x
  3. Step 3: Cross multiply
    814,339.76x = 1,123,791.74 × 451,770.80
  4. Step 4: Simplify right side
    814,339.76x = 507,696,293,413.19
  5. Step 5: Solve for x
    x = 507,696,293,413.19/814,339.76
  6. Step 6: Final answer
    x = 623,445.30

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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.