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Finding the Fourth Proportional to 682,881.33, 942,428.42 and 377,016.63

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Solution

The fourth proportional to 682,881.33, 942,428.42 and 377,016.63 is: 520,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,881.33 : 942,428.42 = 377,016.63 : x
  2. Step 2: Convert to fraction form
    682,881.33/942,428.42 = 377,016.63/x
  3. Step 3: Cross multiply
    682,881.33x = 942,428.42 × 377,016.63
  4. Step 4: Simplify right side
    682,881.33x = 355,311,182,919.25
  5. Step 5: Solve for x
    x = 355,311,182,919.25/682,881.33
  6. Step 6: Final answer
    x = 520,311.75

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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.