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Finding the Fourth Proportional to 407,917.86, 562,893.65 and 235,846.87

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Solution

The fourth proportional to 407,917.86, 562,893.65 and 235,846.87 is: 325,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,917.86 : 562,893.65 = 235,846.87 : x
  2. Step 2: Convert to fraction form
    407,917.86/562,893.65 = 235,846.87/x
  3. Step 3: Cross multiply
    407,917.86x = 562,893.65 × 235,846.87
  4. Step 4: Simplify right side
    407,917.86x = 132,756,705,495.38
  5. Step 5: Solve for x
    x = 132,756,705,495.38/407,917.86
  6. Step 6: Final answer
    x = 325,449.60

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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.