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Finding the Fourth Proportional to 1,494.52, 2,239.99 and 714.02

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Solution

The fourth proportional to 1,494.52, 2,239.99 and 714.02 is: 1,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.52 : 2,239.99 = 714.02 : x
  2. Step 2: Convert to fraction form
    1,494.52/2,239.99 = 714.02/x
  3. Step 3: Cross multiply
    1,494.52x = 2,239.99 × 714.02
  4. Step 4: Simplify right side
    1,494.52x = 1,599,384.67
  5. Step 5: Solve for x
    x = 1,599,384.67/1,494.52
  6. Step 6: Final answer
    x = 1,070.17

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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.