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Finding the Fourth Proportional to 664,424.44, 916,892.94 and 362,620.60

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Solution

The fourth proportional to 664,424.44, 916,892.94 and 362,620.60 is: 500,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,424.44 : 916,892.94 = 362,620.60 : x
  2. Step 2: Convert to fraction form
    664,424.44/916,892.94 = 362,620.60/x
  3. Step 3: Cross multiply
    664,424.44x = 916,892.94 × 362,620.60
  4. Step 4: Simplify right side
    664,424.44x = 332,484,268,038.56
  5. Step 5: Solve for x
    x = 332,484,268,038.56/664,424.44
  6. Step 6: Final answer
    x = 500,409.45

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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.