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Finding the Fourth Proportional to 1,065.94, 1,597.95 and 416.53

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Solution

The fourth proportional to 1,065.94, 1,597.95 and 416.53 is: 624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.94 : 1,597.95 = 416.53 : x
  2. Step 2: Convert to fraction form
    1,065.94/1,597.95 = 416.53/x
  3. Step 3: Cross multiply
    1,065.94x = 1,597.95 × 416.53
  4. Step 4: Simplify right side
    1,065.94x = 665,594.11
  5. Step 5: Solve for x
    x = 665,594.11/1,065.94
  6. Step 6: Final answer
    x = 624.42

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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.