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Finding the Fourth Proportional to 1,416.88, 1,952.64 and 1,023.24

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Solution

The fourth proportional to 1,416.88, 1,952.64 and 1,023.24 is: 1,410.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.88 : 1,952.64 = 1,023.24 : x
  2. Step 2: Convert to fraction form
    1,416.88/1,952.64 = 1,023.24/x
  3. Step 3: Cross multiply
    1,416.88x = 1,952.64 × 1,023.24
  4. Step 4: Simplify right side
    1,416.88x = 1,998,019.35
  5. Step 5: Solve for x
    x = 1,998,019.35/1,416.88
  6. Step 6: Final answer
    x = 1,410.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.