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Finding the Fourth Proportional to 505,771.51, 698,012.94 and 276,363.63

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Solution

The fourth proportional to 505,771.51, 698,012.94 and 276,363.63 is: 381,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,771.51 : 698,012.94 = 276,363.63 : x
  2. Step 2: Convert to fraction form
    505,771.51/698,012.94 = 276,363.63/x
  3. Step 3: Cross multiply
    505,771.51x = 698,012.94 × 276,363.63
  4. Step 4: Simplify right side
    505,771.51x = 192,905,389,885.37
  5. Step 5: Solve for x
    x = 192,905,389,885.37/505,771.51
  6. Step 6: Final answer
    x = 381,408.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.