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Finding the Fourth Proportional to 400,661.79, 601,023.95 and 116,357.01

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Solution

The fourth proportional to 400,661.79, 601,023.95 and 116,357.01 is: 174,544.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,661.79 : 601,023.95 = 116,357.01 : x
  2. Step 2: Convert to fraction form
    400,661.79/601,023.95 = 116,357.01/x
  3. Step 3: Cross multiply
    400,661.79x = 601,023.95 × 116,357.01
  4. Step 4: Simplify right side
    400,661.79x = 69,933,347,361.10
  5. Step 5: Solve for x
    x = 69,933,347,361.10/400,661.79
  6. Step 6: Final answer
    x = 174,544.59

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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.