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Finding the Fourth Proportional to 476,858.55, 658,064.25 and 261,998.08

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Solution

The fourth proportional to 476,858.55, 658,064.25 and 261,998.08 is: 361,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,858.55 : 658,064.25 = 261,998.08 : x
  2. Step 2: Convert to fraction form
    476,858.55/658,064.25 = 261,998.08/x
  3. Step 3: Cross multiply
    476,858.55x = 658,064.25 × 261,998.08
  4. Step 4: Simplify right side
    476,858.55x = 172,411,570,016.64
  5. Step 5: Solve for x
    x = 172,411,570,016.64/476,858.55
  6. Step 6: Final answer
    x = 361,557.05

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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.