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Finding the Fourth Proportional to 496,917.18, 745,071.93 and 243,876.42

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Solution

The fourth proportional to 496,917.18, 745,071.93 and 243,876.42 is: 365,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,917.18 : 745,071.93 = 243,876.42 : x
  2. Step 2: Convert to fraction form
    496,917.18/745,071.93 = 243,876.42/x
  3. Step 3: Cross multiply
    496,917.18x = 745,071.93 × 243,876.42
  4. Step 4: Simplify right side
    496,917.18x = 181,705,474,930.89
  5. Step 5: Solve for x
    x = 181,705,474,930.89/496,917.18
  6. Step 6: Final answer
    x = 365,665.51

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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.