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Finding the Fourth Proportional to 426,866.86, 589,113.56 and 235,917.16

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Solution

The fourth proportional to 426,866.86, 589,113.56 and 235,917.16 is: 325,586.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,866.86 : 589,113.56 = 235,917.16 : x
  2. Step 2: Convert to fraction form
    426,866.86/589,113.56 = 235,917.16/x
  3. Step 3: Cross multiply
    426,866.86x = 589,113.56 × 235,917.16
  4. Step 4: Simplify right side
    426,866.86x = 138,981,995,782.67
  5. Step 5: Solve for x
    x = 138,981,995,782.67/426,866.86
  6. Step 6: Final answer
    x = 325,586.29

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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.