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Finding the Fourth Proportional to 383,043.32, 528,594.81 and 210,958.01

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Solution

The fourth proportional to 383,043.32, 528,594.81 and 210,958.01 is: 291,119.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,043.32 : 528,594.81 = 210,958.01 : x
  2. Step 2: Convert to fraction form
    383,043.32/528,594.81 = 210,958.01/x
  3. Step 3: Cross multiply
    383,043.32x = 528,594.81 × 210,958.01
  4. Step 4: Simplify right side
    383,043.32x = 111,511,306,570.95
  5. Step 5: Solve for x
    x = 111,511,306,570.95/383,043.32
  6. Step 6: Final answer
    x = 291,119.31

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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.