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Finding the Fourth Proportional to 499,408.75, 689,184.12 and 273,054.25

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Solution

The fourth proportional to 499,408.75, 689,184.12 and 273,054.25 is: 376,814.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,408.75 : 689,184.12 = 273,054.25 : x
  2. Step 2: Convert to fraction form
    499,408.75/689,184.12 = 273,054.25/x
  3. Step 3: Cross multiply
    499,408.75x = 689,184.12 × 273,054.25
  4. Step 4: Simplify right side
    499,408.75x = 188,184,652,998.51
  5. Step 5: Solve for x
    x = 188,184,652,998.51/499,408.75
  6. Step 6: Final answer
    x = 376,814.89

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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.