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Finding the Fourth Proportional to 276,656.40, 414,984.60 and 191,035.35

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Solution

The fourth proportional to 276,656.40, 414,984.60 and 191,035.35 is: 286,553.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,656.40 : 414,984.60 = 191,035.35 : x
  2. Step 2: Convert to fraction form
    276,656.40/414,984.60 = 191,035.35/x
  3. Step 3: Cross multiply
    276,656.40x = 414,984.60 × 191,035.35
  4. Step 4: Simplify right side
    276,656.40x = 79,276,728,305.61
  5. Step 5: Solve for x
    x = 79,276,728,305.61/276,656.40
  6. Step 6: Final answer
    x = 286,553.03

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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.