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Finding the Fourth Proportional to 603,305.15, 832,618.92 and 345,130.83

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Solution

The fourth proportional to 603,305.15, 832,618.92 and 345,130.83 is: 476,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,305.15 : 832,618.92 = 345,130.83 : x
  2. Step 2: Convert to fraction form
    603,305.15/832,618.92 = 345,130.83/x
  3. Step 3: Cross multiply
    603,305.15x = 832,618.92 × 345,130.83
  4. Step 4: Simplify right side
    603,305.15x = 287,362,458,933.30
  5. Step 5: Solve for x
    x = 287,362,458,933.30/603,305.15
  6. Step 6: Final answer
    x = 476,313.62

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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.