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Finding the Fourth Proportional to 1,416.68, 2,125.29 and 492.27

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Solution

The fourth proportional to 1,416.68, 2,125.29 and 492.27 is: 738.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.68 : 2,125.29 = 492.27 : x
  2. Step 2: Convert to fraction form
    1,416.68/2,125.29 = 492.27/x
  3. Step 3: Cross multiply
    1,416.68x = 2,125.29 × 492.27
  4. Step 4: Simplify right side
    1,416.68x = 1,046,216.51
  5. Step 5: Solve for x
    x = 1,046,216.51/1,416.68
  6. Step 6: Final answer
    x = 738.50

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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.