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Finding the Fourth Proportional to 1,402.95, 1,934.05 and 982.00

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Solution

The fourth proportional to 1,402.95, 1,934.05 and 982.00 is: 1,353.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.95 : 1,934.05 = 982.00 : x
  2. Step 2: Convert to fraction form
    1,402.95/1,934.05 = 982.00/x
  3. Step 3: Cross multiply
    1,402.95x = 1,934.05 × 982.00
  4. Step 4: Simplify right side
    1,402.95x = 1,899,222.52
  5. Step 5: Solve for x
    x = 1,899,222.52/1,402.95
  6. Step 6: Final answer
    x = 1,353.74

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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.