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Finding the Fourth Proportional to 1,795.18, 2,477.36 and 998.52

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Solution

The fourth proportional to 1,795.18, 2,477.36 and 998.52 is: 1,377.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.18 : 2,477.36 = 998.52 : x
  2. Step 2: Convert to fraction form
    1,795.18/2,477.36 = 998.52/x
  3. Step 3: Cross multiply
    1,795.18x = 2,477.36 × 998.52
  4. Step 4: Simplify right side
    1,795.18x = 2,473,693.51
  5. Step 5: Solve for x
    x = 2,473,693.51/1,795.18
  6. Step 6: Final answer
    x = 1,377.96

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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.