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Finding the Fourth Proportional to 383,531.96, 529,276.56 and 213,776.84

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Solution

The fourth proportional to 383,531.96, 529,276.56 and 213,776.84 is: 295,013.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,531.96 : 529,276.56 = 213,776.84 : x
  2. Step 2: Convert to fraction form
    383,531.96/529,276.56 = 213,776.84/x
  3. Step 3: Cross multiply
    383,531.96x = 529,276.56 × 213,776.84
  4. Step 4: Simplify right side
    383,531.96x = 113,147,070,482.87
  5. Step 5: Solve for x
    x = 113,147,070,482.87/383,531.96
  6. Step 6: Final answer
    x = 295,013.41

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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.