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Finding the Fourth Proportional to 368,162.96, 507,815.12 and 238,870.44

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Solution

The fourth proportional to 368,162.96, 507,815.12 and 238,870.44 is: 329,479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,162.96 : 507,815.12 = 238,870.44 : x
  2. Step 2: Convert to fraction form
    368,162.96/507,815.12 = 238,870.44/x
  3. Step 3: Cross multiply
    368,162.96x = 507,815.12 × 238,870.44
  4. Step 4: Simplify right side
    368,162.96x = 121,302,021,153.05
  5. Step 5: Solve for x
    x = 121,302,021,153.05/368,162.96
  6. Step 6: Final answer
    x = 329,479.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.