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Finding the Fourth Proportional to 682,832.32, 942,308.70 and 376,908.77

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Solution

The fourth proportional to 682,832.32, 942,308.70 and 376,908.77 is: 520,134.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,832.32 : 942,308.70 = 376,908.77 : x
  2. Step 2: Convert to fraction form
    682,832.32/942,308.70 = 376,908.77/x
  3. Step 3: Cross multiply
    682,832.32x = 942,308.70 × 376,908.77
  4. Step 4: Simplify right side
    682,832.32x = 355,164,408,365.76
  5. Step 5: Solve for x
    x = 355,164,408,365.76/682,832.32
  6. Step 6: Final answer
    x = 520,134.15

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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.