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Finding the Fourth Proportional to 407,249.71, 562,023.53 and 254,378.41

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Solution

The fourth proportional to 407,249.71, 562,023.53 and 254,378.41 is: 351,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,249.71 : 562,023.53 = 254,378.41 : x
  2. Step 2: Convert to fraction form
    407,249.71/562,023.53 = 254,378.41/x
  3. Step 3: Cross multiply
    407,249.71x = 562,023.53 × 254,378.41
  4. Step 4: Simplify right side
    407,249.71x = 142,966,650,220.96
  5. Step 5: Solve for x
    x = 142,966,650,220.96/407,249.71
  6. Step 6: Final answer
    x = 351,054.03

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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.