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Finding the Fourth Proportional to 339,093.68, 507,463.08 and 210,957.32

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Solution

The fourth proportional to 339,093.68, 507,463.08 and 210,957.32 is: 315,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,093.68 : 507,463.08 = 210,957.32 : x
  2. Step 2: Convert to fraction form
    339,093.68/507,463.08 = 210,957.32/x
  3. Step 3: Cross multiply
    339,093.68x = 507,463.08 × 210,957.32
  4. Step 4: Simplify right side
    339,093.68x = 107,053,051,355.75
  5. Step 5: Solve for x
    x = 107,053,051,355.75/339,093.68
  6. Step 6: Final answer
    x = 315,703.47

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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.