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Finding the Fourth Proportional to 1,190.01, 1,785.27 and 368.25

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Solution

The fourth proportional to 1,190.01, 1,785.27 and 368.25 is: 552.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.01 : 1,785.27 = 368.25 : x
  2. Step 2: Convert to fraction form
    1,190.01/1,785.27 = 368.25/x
  3. Step 3: Cross multiply
    1,190.01x = 1,785.27 × 368.25
  4. Step 4: Simplify right side
    1,190.01x = 657,425.68
  5. Step 5: Solve for x
    x = 657,425.68/1,190.01
  6. Step 6: Final answer
    x = 552.45

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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.