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Finding the Fourth Proportional to 477,187.61, 658,493.55 and 262,286.30

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Solution

The fourth proportional to 477,187.61, 658,493.55 and 262,286.30 is: 361,941.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,187.61 : 658,493.55 = 262,286.30 : x
  2. Step 2: Convert to fraction form
    477,187.61/658,493.55 = 262,286.30/x
  3. Step 3: Cross multiply
    477,187.61x = 658,493.55 × 262,286.30
  4. Step 4: Simplify right side
    477,187.61x = 172,713,838,449.60
  5. Step 5: Solve for x
    x = 172,713,838,449.60/477,187.61
  6. Step 6: Final answer
    x = 361,941.17

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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.