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Finding the Fourth Proportional to 1,134.12, 1,565.15 and 692.00

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Solution

The fourth proportional to 1,134.12, 1,565.15 and 692.00 is: 954.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.12 : 1,565.15 = 692.00 : x
  2. Step 2: Convert to fraction form
    1,134.12/1,565.15 = 692.00/x
  3. Step 3: Cross multiply
    1,134.12x = 1,565.15 × 692.00
  4. Step 4: Simplify right side
    1,134.12x = 1,083,072.51
  5. Step 5: Solve for x
    x = 1,083,072.51/1,134.12
  6. Step 6: Final answer
    x = 954.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.