Home / 594,664.70-821,318.39-391,623.21

Finding the Fourth Proportional to 594,664.70, 821,318.39 and 391,623.21

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Solution

The fourth proportional to 594,664.70, 821,318.39 and 391,623.21 is: 540,888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,664.70 : 821,318.39 = 391,623.21 : x
  2. Step 2: Convert to fraction form
    594,664.70/821,318.39 = 391,623.21/x
  3. Step 3: Cross multiply
    594,664.70x = 821,318.39 × 391,623.21
  4. Step 4: Simplify right side
    594,664.70x = 321,647,342,365.72
  5. Step 5: Solve for x
    x = 321,647,342,365.72/594,664.70
  6. Step 6: Final answer
    x = 540,888.58

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1.5x scale

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.