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Finding the Fourth Proportional to 707,844.42, 976,847.85 and 385,564.86

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Solution

The fourth proportional to 707,844.42, 976,847.85 and 385,564.86 is: 532,091.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,844.42 : 976,847.85 = 385,564.86 : x
  2. Step 2: Convert to fraction form
    707,844.42/976,847.85 = 385,564.86/x
  3. Step 3: Cross multiply
    707,844.42x = 976,847.85 × 385,564.86
  4. Step 4: Simplify right side
    707,844.42x = 376,638,204,526.55
  5. Step 5: Solve for x
    x = 376,638,204,526.55/707,844.42
  6. Step 6: Final answer
    x = 532,091.79

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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.