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Finding the Fourth Proportional to 1,364.70, 2,044.01 and 1,055.55

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Solution

The fourth proportional to 1,364.70, 2,044.01 and 1,055.55 is: 1,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.70 : 2,044.01 = 1,055.55 : x
  2. Step 2: Convert to fraction form
    1,364.70/2,044.01 = 1,055.55/x
  3. Step 3: Cross multiply
    1,364.70x = 2,044.01 × 1,055.55
  4. Step 4: Simplify right side
    1,364.70x = 2,157,549.48
  5. Step 5: Solve for x
    x = 2,157,549.48/1,364.70
  6. Step 6: Final answer
    x = 1,580.97

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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.