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Finding the Fourth Proportional to 618,773.20, 927,468.60 and 352,661.20

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Solution

The fourth proportional to 618,773.20, 927,468.60 and 352,661.20 is: 528,597.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,773.20 : 927,468.60 = 352,661.20 : x
  2. Step 2: Convert to fraction form
    618,773.20/927,468.60 = 352,661.20/x
  3. Step 3: Cross multiply
    618,773.20x = 927,468.60 × 352,661.20
  4. Step 4: Simplify right side
    618,773.20x = 327,082,189,438.32
  5. Step 5: Solve for x
    x = 327,082,189,438.32/618,773.20
  6. Step 6: Final answer
    x = 528,597.86

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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.