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Finding the Fourth Proportional to 453,168, 625,371.84 and 251,964

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Solution

The fourth proportional to 453,168, 625,371.84 and 251,964 is: 347,710.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,168 : 625,371.84 = 251,964 : x
  2. Step 2: Convert to fraction form
    453,168/625,371.84 = 251,964/x
  3. Step 3: Cross multiply
    453,168x = 625,371.84 × 251,964
  4. Step 4: Simplify right side
    453,168x = 157,571,190,293.76
  5. Step 5: Solve for x
    x = 157,571,190,293.76/453,168
  6. Step 6: Final answer
    x = 347,710.32

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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.