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Finding the Fourth Proportional to 492,470.46, 738,705.60 and 118,493.46

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Solution

The fourth proportional to 492,470.46, 738,705.60 and 118,493.46 is: 177,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,470.46 : 738,705.60 = 118,493.46 : x
  2. Step 2: Convert to fraction form
    492,470.46/738,705.60 = 118,493.46/x
  3. Step 3: Cross multiply
    492,470.46x = 738,705.60 × 118,493.46
  4. Step 4: Simplify right side
    492,470.46x = 87,531,782,465.38
  5. Step 5: Solve for x
    x = 87,531,782,465.38/492,470.46
  6. Step 6: Final answer
    x = 177,740.17

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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.