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Finding the Fourth Proportional to 628,005.88, 942,011.48 and 195,728.84

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Solution

The fourth proportional to 628,005.88, 942,011.48 and 195,728.84 is: 293,594.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,005.88 : 942,011.48 = 195,728.84 : x
  2. Step 2: Convert to fraction form
    628,005.88/942,011.48 = 195,728.84/x
  3. Step 3: Cross multiply
    628,005.88x = 942,011.48 × 195,728.84
  4. Step 4: Simplify right side
    628,005.88x = 184,378,814,247.08
  5. Step 5: Solve for x
    x = 184,378,814,247.08/628,005.88
  6. Step 6: Final answer
    x = 293,594.09

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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.