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Finding the Fourth Proportional to 590,921.32, 886,658.78 and 291,238.56

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Solution

The fourth proportional to 590,921.32, 886,658.78 and 291,238.56 is: 436,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,921.32 : 886,658.78 = 291,238.56 : x
  2. Step 2: Convert to fraction form
    590,921.32/886,658.78 = 291,238.56/x
  3. Step 3: Cross multiply
    590,921.32x = 886,658.78 × 291,238.56
  4. Step 4: Simplify right side
    590,921.32x = 258,229,226,298.56
  5. Step 5: Solve for x
    x = 258,229,226,298.56/590,921.32
  6. Step 6: Final answer
    x = 436,994.26

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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.