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Finding the Fourth Proportional to 456,291.36, 629,670.52 and 252,336.86

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Solution

The fourth proportional to 456,291.36, 629,670.52 and 252,336.86 is: 348,218.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,291.36 : 629,670.52 = 252,336.86 : x
  2. Step 2: Convert to fraction form
    456,291.36/629,670.52 = 252,336.86/x
  3. Step 3: Cross multiply
    456,291.36x = 629,670.52 × 252,336.86
  4. Step 4: Simplify right side
    456,291.36x = 158,889,077,599.04
  5. Step 5: Solve for x
    x = 158,889,077,599.04/456,291.36
  6. Step 6: Final answer
    x = 348,218.46

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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.