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Finding the Fourth Proportional to 585,251.37, 877,813.25 and 396,921.51

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Solution

The fourth proportional to 585,251.37, 877,813.25 and 396,921.51 is: 595,338.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,251.37 : 877,813.25 = 396,921.51 : x
  2. Step 2: Convert to fraction form
    585,251.37/877,813.25 = 396,921.51/x
  3. Step 3: Cross multiply
    585,251.37x = 877,813.25 × 396,921.51
  4. Step 4: Simplify right side
    585,251.37x = 348,422,958,703.40
  5. Step 5: Solve for x
    x = 348,422,958,703.40/585,251.37
  6. Step 6: Final answer
    x = 595,338.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.