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Finding the Fourth Proportional to 451,341.72, 622,828.44 and 260,343.72

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Solution

The fourth proportional to 451,341.72, 622,828.44 and 260,343.72 is: 359,260.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,341.72 : 622,828.44 = 260,343.72 : x
  2. Step 2: Convert to fraction form
    451,341.72/622,828.44 = 260,343.72/x
  3. Step 3: Cross multiply
    451,341.72x = 622,828.44 × 260,343.72
  4. Step 4: Simplify right side
    451,341.72x = 162,149,472,991.40
  5. Step 5: Solve for x
    x = 162,149,472,991.40/451,341.72
  6. Step 6: Final answer
    x = 359,260.99

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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.