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Finding the Fourth Proportional to 1,193.94, 1,647.95 and 697.01

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Solution

The fourth proportional to 1,193.94, 1,647.95 and 697.01 is: 962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.94 : 1,647.95 = 697.01 : x
  2. Step 2: Convert to fraction form
    1,193.94/1,647.95 = 697.01/x
  3. Step 3: Cross multiply
    1,193.94x = 1,647.95 × 697.01
  4. Step 4: Simplify right side
    1,193.94x = 1,148,625.90
  5. Step 5: Solve for x
    x = 1,148,625.90/1,193.94
  6. Step 6: Final answer
    x = 962.05

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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.