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Finding the Fourth Proportional to 593,143.20, 889,714.80 and 451,425.60

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Solution

The fourth proportional to 593,143.20, 889,714.80 and 451,425.60 is: 677,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,143.20 : 889,714.80 = 451,425.60 : x
  2. Step 2: Convert to fraction form
    593,143.20/889,714.80 = 451,425.60/x
  3. Step 3: Cross multiply
    593,143.20x = 889,714.80 × 451,425.60
  4. Step 4: Simplify right side
    593,143.20x = 401,640,037,418.88
  5. Step 5: Solve for x
    x = 401,640,037,418.88/593,143.20
  6. Step 6: Final answer
    x = 677,138.40

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Similar ratio
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1.5x scale

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.