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Finding the Fourth Proportional to 438,074.72, 604,816.78 and 335,903.90

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Solution

The fourth proportional to 438,074.72, 604,816.78 and 335,903.90 is: 463,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,074.72 : 604,816.78 = 335,903.90 : x
  2. Step 2: Convert to fraction form
    438,074.72/604,816.78 = 335,903.90/x
  3. Step 3: Cross multiply
    438,074.72x = 604,816.78 × 335,903.90
  4. Step 4: Simplify right side
    438,074.72x = 203,160,315,187.44
  5. Step 5: Solve for x
    x = 203,160,315,187.44/438,074.72
  6. Step 6: Final answer
    x = 463,757.22

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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.