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Finding the Fourth Proportional to 518,586.05, 777,699.16 and 181,619.27

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Solution

The fourth proportional to 518,586.05, 777,699.16 and 181,619.27 is: 272,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,586.05 : 777,699.16 = 181,619.27 : x
  2. Step 2: Convert to fraction form
    518,586.05/777,699.16 = 181,619.27/x
  3. Step 3: Cross multiply
    518,586.05x = 777,699.16 × 181,619.27
  4. Step 4: Simplify right side
    518,586.05x = 141,245,153,718.81
  5. Step 5: Solve for x
    x = 141,245,153,718.81/518,586.05
  6. Step 6: Final answer
    x = 272,365.90

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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.