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Finding the Fourth Proportional to 907,807.56, 1,361,930.04 and 276,682.56

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Solution

The fourth proportional to 907,807.56, 1,361,930.04 and 276,682.56 is: 415,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,807.56 : 1,361,930.04 = 276,682.56 : x
  2. Step 2: Convert to fraction form
    907,807.56/1,361,930.04 = 276,682.56/x
  3. Step 3: Cross multiply
    907,807.56x = 1,361,930.04 × 276,682.56
  4. Step 4: Simplify right side
    907,807.56x = 376,822,290,008.10
  5. Step 5: Solve for x
    x = 376,822,290,008.10/907,807.56
  6. Step 6: Final answer
    x = 415,090.50

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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.