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Finding the Fourth Proportional to 499,705.20, 749,298.60 and 183,999.60

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Solution

The fourth proportional to 499,705.20, 749,298.60 and 183,999.60 is: 275,903.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,705.20 : 749,298.60 = 183,999.60 : x
  2. Step 2: Convert to fraction form
    499,705.20/749,298.60 = 183,999.60/x
  3. Step 3: Cross multiply
    499,705.20x = 749,298.60 × 183,999.60
  4. Step 4: Simplify right side
    499,705.20x = 137,870,642,680.56
  5. Step 5: Solve for x
    x = 137,870,642,680.56/499,705.20
  6. Step 6: Final answer
    x = 275,903.96

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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.