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Finding the Fourth Proportional to 1,714.77, 2,572.14 and 416.24

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Solution

The fourth proportional to 1,714.77, 2,572.14 and 416.24 is: 624.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.77 : 2,572.14 = 416.24 : x
  2. Step 2: Convert to fraction form
    1,714.77/2,572.14 = 416.24/x
  3. Step 3: Cross multiply
    1,714.77x = 2,572.14 × 416.24
  4. Step 4: Simplify right side
    1,714.77x = 1,070,627.55
  5. Step 5: Solve for x
    x = 1,070,627.55/1,714.77
  6. Step 6: Final answer
    x = 624.36

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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.