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Finding the Fourth Proportional to 1,457.16, 2,010.92 and 793.98

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Solution

The fourth proportional to 1,457.16, 2,010.92 and 793.98 is: 1,095.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.16 : 2,010.92 = 793.98 : x
  2. Step 2: Convert to fraction form
    1,457.16/2,010.92 = 793.98/x
  3. Step 3: Cross multiply
    1,457.16x = 2,010.92 × 793.98
  4. Step 4: Simplify right side
    1,457.16x = 1,596,630.26
  5. Step 5: Solve for x
    x = 1,596,630.26/1,457.16
  6. Step 6: Final answer
    x = 1,095.71

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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.