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Finding the Fourth Proportional to 1,417.25, 1,955.95 and 788.00

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Solution

The fourth proportional to 1,417.25, 1,955.95 and 788.00 is: 1,087.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.25 : 1,955.95 = 788.00 : x
  2. Step 2: Convert to fraction form
    1,417.25/1,955.95 = 788.00/x
  3. Step 3: Cross multiply
    1,417.25x = 1,955.95 × 788.00
  4. Step 4: Simplify right side
    1,417.25x = 1,541,276.85
  5. Step 5: Solve for x
    x = 1,541,276.85/1,417.25
  6. Step 6: Final answer
    x = 1,087.51

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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.