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Finding the Fourth Proportional to 907,651.80, 1,361,331.90 and 276,418.80

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Solution

The fourth proportional to 907,651.80, 1,361,331.90 and 276,418.80 is: 414,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,651.80 : 1,361,331.90 = 276,418.80 : x
  2. Step 2: Convert to fraction form
    907,651.80/1,361,331.90 = 276,418.80/x
  3. Step 3: Cross multiply
    907,651.80x = 1,361,331.90 × 276,418.80
  4. Step 4: Simplify right side
    907,651.80x = 376,297,730,199.72
  5. Step 5: Solve for x
    x = 376,297,730,199.72/907,651.80
  6. Step 6: Final answer
    x = 414,583.80

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Double scale
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1.5x scale

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.