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Finding the Fourth Proportional to 1,608.93, 2,412.00 and 684.35

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Solution

The fourth proportional to 1,608.93, 2,412.00 and 684.35 is: 1,025.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.93 : 2,412.00 = 684.35 : x
  2. Step 2: Convert to fraction form
    1,608.93/2,412.00 = 684.35/x
  3. Step 3: Cross multiply
    1,608.93x = 2,412.00 × 684.35
  4. Step 4: Simplify right side
    1,608.93x = 1,650,651.11
  5. Step 5: Solve for x
    x = 1,650,651.11/1,608.93
  6. Step 6: Final answer
    x = 1,025.93

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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.