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Finding the Fourth Proportional to 402,895.40, 604,277.39 and 118,519.42

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Solution

The fourth proportional to 402,895.40, 604,277.39 and 118,519.42 is: 177,759.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,895.40 : 604,277.39 = 118,519.42 : x
  2. Step 2: Convert to fraction form
    402,895.40/604,277.39 = 118,519.42/x
  3. Step 3: Cross multiply
    402,895.40x = 604,277.39 × 118,519.42
  4. Step 4: Simplify right side
    402,895.40x = 71,618,608,416.50
  5. Step 5: Solve for x
    x = 71,618,608,416.50/402,895.40
  6. Step 6: Final answer
    x = 177,759.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.