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Finding the Fourth Proportional to 534,621.81, 737,798.43 and 305,216.44

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Solution

The fourth proportional to 534,621.81, 737,798.43 and 305,216.44 is: 421,210.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,621.81 : 737,798.43 = 305,216.44 : x
  2. Step 2: Convert to fraction form
    534,621.81/737,798.43 = 305,216.44/x
  3. Step 3: Cross multiply
    534,621.81x = 737,798.43 × 305,216.44
  4. Step 4: Simplify right side
    534,621.81x = 225,188,210,242.19
  5. Step 5: Solve for x
    x = 225,188,210,242.19/534,621.81
  6. Step 6: Final answer
    x = 421,210.29

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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.