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Finding the Fourth Proportional to 1,415.62, 1,953.45 and 794.50

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Solution

The fourth proportional to 1,415.62, 1,953.45 and 794.50 is: 1,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.62 : 1,953.45 = 794.50 : x
  2. Step 2: Convert to fraction form
    1,415.62/1,953.45 = 794.50/x
  3. Step 3: Cross multiply
    1,415.62x = 1,953.45 × 794.50
  4. Step 4: Simplify right side
    1,415.62x = 1,552,016.03
  5. Step 5: Solve for x
    x = 1,552,016.03/1,415.62
  6. Step 6: Final answer
    x = 1,096.35

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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.