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Finding the Fourth Proportional to 1,597.19, 2,393.96 and 776.25

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Solution

The fourth proportional to 1,597.19, 2,393.96 and 776.25 is: 1,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,597.19 : 2,393.96 = 776.25 : x
  2. Step 2: Convert to fraction form
    1,597.19/2,393.96 = 776.25/x
  3. Step 3: Cross multiply
    1,597.19x = 2,393.96 × 776.25
  4. Step 4: Simplify right side
    1,597.19x = 1,858,307.57
  5. Step 5: Solve for x
    x = 1,858,307.57/1,597.19
  6. Step 6: Final answer
    x = 1,163.49

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1.5x scale

Why These Related Problems?

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