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Finding the Fourth Proportional to 705,362.36, 973,399.83 and 383,072.54

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Solution

The fourth proportional to 705,362.36, 973,399.83 and 383,072.54 is: 528,639.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,362.36 : 973,399.83 = 383,072.54 : x
  2. Step 2: Convert to fraction form
    705,362.36/973,399.83 = 383,072.54/x
  3. Step 3: Cross multiply
    705,362.36x = 973,399.83 × 383,072.54
  4. Step 4: Simplify right side
    705,362.36x = 372,882,745,313.67
  5. Step 5: Solve for x
    x = 372,882,745,313.67/705,362.36
  6. Step 6: Final answer
    x = 528,639.98

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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.