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Finding the Fourth Proportional to 590,939.27, 886,685.72 and 291,256.49

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Solution

The fourth proportional to 590,939.27, 886,685.72 and 291,256.49 is: 437,021.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,939.27 : 886,685.72 = 291,256.49 : x
  2. Step 2: Convert to fraction form
    590,939.27/886,685.72 = 291,256.49/x
  3. Step 3: Cross multiply
    590,939.27x = 886,685.72 × 291,256.49
  4. Step 4: Simplify right side
    590,939.27x = 258,252,970,540.32
  5. Step 5: Solve for x
    x = 258,252,970,540.32/590,939.27
  6. Step 6: Final answer
    x = 437,021.17

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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.