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Finding the Fourth Proportional to 492,311.64, 738,467.40 and 118,334.64

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Solution

The fourth proportional to 492,311.64, 738,467.40 and 118,334.64 is: 177,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,311.64 : 738,467.40 = 118,334.64 : x
  2. Step 2: Convert to fraction form
    492,311.64/738,467.40 = 118,334.64/x
  3. Step 3: Cross multiply
    492,311.64x = 738,467.40 × 118,334.64
  4. Step 4: Simplify right side
    492,311.64x = 87,386,273,930.74
  5. Step 5: Solve for x
    x = 87,386,273,930.74/492,311.64
  6. Step 6: Final answer
    x = 177,501.95

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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.