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Finding the Fourth Proportional to 594,920.66, 820,990.50 and 322,988.54

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Solution

The fourth proportional to 594,920.66, 820,990.50 and 322,988.54 is: 445,724.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,920.66 : 820,990.50 = 322,988.54 : x
  2. Step 2: Convert to fraction form
    594,920.66/820,990.50 = 322,988.54/x
  3. Step 3: Cross multiply
    594,920.66x = 820,990.50 × 322,988.54
  4. Step 4: Simplify right side
    594,920.66x = 265,170,522,948.87
  5. Step 5: Solve for x
    x = 265,170,522,948.87/594,920.66
  6. Step 6: Final answer
    x = 445,724.18

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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.