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Finding the Fourth Proportional to 1,263.22, 1,895.49 and 716.47

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Solution

The fourth proportional to 1,263.22, 1,895.49 and 716.47 is: 1,075.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.22 : 1,895.49 = 716.47 : x
  2. Step 2: Convert to fraction form
    1,263.22/1,895.49 = 716.47/x
  3. Step 3: Cross multiply
    1,263.22x = 1,895.49 × 716.47
  4. Step 4: Simplify right side
    1,263.22x = 1,358,061.72
  5. Step 5: Solve for x
    x = 1,358,061.72/1,263.22
  6. Step 6: Final answer
    x = 1,075.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.