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Finding the Fourth Proportional to 425,616.29, 587,346.61 and 234,629.67

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Solution

The fourth proportional to 425,616.29, 587,346.61 and 234,629.67 is: 323,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,616.29 : 587,346.61 = 234,629.67 : x
  2. Step 2: Convert to fraction form
    425,616.29/587,346.61 = 234,629.67/x
  3. Step 3: Cross multiply
    425,616.29x = 587,346.61 × 234,629.67
  4. Step 4: Simplify right side
    425,616.29x = 137,808,940,106.77
  5. Step 5: Solve for x
    x = 137,808,940,106.77/425,616.29
  6. Step 6: Final answer
    x = 323,786.81

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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.