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Finding the Fourth Proportional to 1,203.48, 1,657.10 and 1,026.04

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Solution

The fourth proportional to 1,203.48, 1,657.10 and 1,026.04 is: 1,412.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.48 : 1,657.10 = 1,026.04 : x
  2. Step 2: Convert to fraction form
    1,203.48/1,657.10 = 1,026.04/x
  3. Step 3: Cross multiply
    1,203.48x = 1,657.10 × 1,026.04
  4. Step 4: Simplify right side
    1,203.48x = 1,700,245.75
  5. Step 5: Solve for x
    x = 1,700,245.75/1,203.48
  6. Step 6: Final answer
    x = 1,412.78

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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.