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Finding the Fourth Proportional to 492,811.80, 738,051.30 and 334,181.40

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Solution

The fourth proportional to 492,811.80, 738,051.30 and 334,181.40 is: 500,481.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,811.80 : 738,051.30 = 334,181.40 : x
  2. Step 2: Convert to fraction form
    492,811.80/738,051.30 = 334,181.40/x
  3. Step 3: Cross multiply
    492,811.80x = 738,051.30 × 334,181.40
  4. Step 4: Simplify right side
    492,811.80x = 246,643,016,705.82
  5. Step 5: Solve for x
    x = 246,643,016,705.82/492,811.80
  6. Step 6: Final answer
    x = 500,481.15

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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.