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Finding the Fourth Proportional to 383,100.39, 528,682.01 and 213,337.89

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Solution

The fourth proportional to 383,100.39, 528,682.01 and 213,337.89 is: 294,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,100.39 : 528,682.01 = 213,337.89 : x
  2. Step 2: Convert to fraction form
    383,100.39/528,682.01 = 213,337.89/x
  3. Step 3: Cross multiply
    383,100.39x = 528,682.01 × 213,337.89
  4. Step 4: Simplify right side
    383,100.39x = 112,787,903,427.67
  5. Step 5: Solve for x
    x = 112,787,903,427.67/383,100.39
  6. Step 6: Final answer
    x = 294,408.22

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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.