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Finding the Fourth Proportional to 425,698.36, 587,467.71 and 234,718.54

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Solution

The fourth proportional to 425,698.36, 587,467.71 and 234,718.54 is: 323,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,698.36 : 587,467.71 = 234,718.54 : x
  2. Step 2: Convert to fraction form
    425,698.36/587,467.71 = 234,718.54/x
  3. Step 3: Cross multiply
    425,698.36x = 587,467.71 × 234,718.54
  4. Step 4: Simplify right side
    425,698.36x = 137,889,561,719.67
  5. Step 5: Solve for x
    x = 137,889,561,719.67/425,698.36
  6. Step 6: Final answer
    x = 323,913.77

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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.