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Finding the Fourth Proportional to 426,005.94, 587,890.26 and 235,019.28

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Solution

The fourth proportional to 426,005.94, 587,890.26 and 235,019.28 is: 324,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,005.94 : 587,890.26 = 235,019.28 : x
  2. Step 2: Convert to fraction form
    426,005.94/587,890.26 = 235,019.28/x
  3. Step 3: Cross multiply
    426,005.94x = 587,890.26 × 235,019.28
  4. Step 4: Simplify right side
    426,005.94x = 138,165,545,624.21
  5. Step 5: Solve for x
    x = 138,165,545,624.21/426,005.94
  6. Step 6: Final answer
    x = 324,327.74

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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.