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Finding the Fourth Proportional to 705,796.66, 973,997.42 and 383,507.88

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Solution

The fourth proportional to 705,796.66, 973,997.42 and 383,507.88 is: 529,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,796.66 : 973,997.42 = 383,507.88 : x
  2. Step 2: Convert to fraction form
    705,796.66/973,997.42 = 383,507.88/x
  3. Step 3: Cross multiply
    705,796.66x = 973,997.42 × 383,507.88
  4. Step 4: Simplify right side
    705,796.66x = 373,535,685,669.67
  5. Step 5: Solve for x
    x = 373,535,685,669.67/705,796.66
  6. Step 6: Final answer
    x = 529,239.80

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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.