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Finding the Fourth Proportional to 1,416.93, 2,124.72 and 539.48

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Solution

The fourth proportional to 1,416.93, 2,124.72 and 539.48 is: 808.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.93 : 2,124.72 = 539.48 : x
  2. Step 2: Convert to fraction form
    1,416.93/2,124.72 = 539.48/x
  3. Step 3: Cross multiply
    1,416.93x = 2,124.72 × 539.48
  4. Step 4: Simplify right side
    1,416.93x = 1,146,233.32
  5. Step 5: Solve for x
    x = 1,146,233.32/1,416.93
  6. Step 6: Final answer
    x = 808.96

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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.