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Finding the Fourth Proportional to 618,080.32, 927,595.14 and 276,629.68

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Solution

The fourth proportional to 618,080.32, 927,595.14 and 276,629.68 is: 415,156.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,080.32 : 927,595.14 = 276,629.68 : x
  2. Step 2: Convert to fraction form
    618,080.32/927,595.14 = 276,629.68/x
  3. Step 3: Cross multiply
    618,080.32x = 927,595.14 × 276,629.68
  4. Step 4: Simplify right side
    618,080.32x = 256,600,346,747.76
  5. Step 5: Solve for x
    x = 256,600,346,747.76/618,080.32
  6. Step 6: Final answer
    x = 415,156.96

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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.