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Finding the Fourth Proportional to 695,599.44, 960,006.90 and 389,758.42

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Solution

The fourth proportional to 695,599.44, 960,006.90 and 389,758.42 is: 537,911.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,599.44 : 960,006.90 = 389,758.42 : x
  2. Step 2: Convert to fraction form
    695,599.44/960,006.90 = 389,758.42/x
  3. Step 3: Cross multiply
    695,599.44x = 960,006.90 × 389,758.42
  4. Step 4: Simplify right side
    695,599.44x = 374,170,772,533.10
  5. Step 5: Solve for x
    x = 374,170,772,533.10/695,599.44
  6. Step 6: Final answer
    x = 537,911.26

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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.