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Finding the Fourth Proportional to 451,385.40, 622,889.98 and 260,460.44

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Solution

The fourth proportional to 451,385.40, 622,889.98 and 260,460.44 is: 359,422.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,385.40 : 622,889.98 = 260,460.44 : x
  2. Step 2: Convert to fraction form
    451,385.40/622,889.98 = 260,460.44/x
  3. Step 3: Cross multiply
    451,385.40x = 622,889.98 × 260,460.44
  4. Step 4: Simplify right side
    451,385.40x = 162,238,198,262.39
  5. Step 5: Solve for x
    x = 162,238,198,262.39/451,385.40
  6. Step 6: Final answer
    x = 359,422.79

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1.5x scale

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.