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Finding the Fourth Proportional to 907,832.80, 1,361,603.40 and 276,599.80

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Solution

The fourth proportional to 907,832.80, 1,361,603.40 and 276,599.80 is: 414,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,832.80 : 1,361,603.40 = 276,599.80 : x
  2. Step 2: Convert to fraction form
    907,832.80/1,361,603.40 = 276,599.80/x
  3. Step 3: Cross multiply
    907,832.80x = 1,361,603.40 × 276,599.80
  4. Step 4: Simplify right side
    907,832.80x = 376,619,228,119.32
  5. Step 5: Solve for x
    x = 376,619,228,119.32/907,832.80
  6. Step 6: Final answer
    x = 414,855.28

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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.