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Finding the Fourth Proportional to 383,995.96, 529,311 and 262,927.88

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Solution

The fourth proportional to 383,995.96, 529,311 and 262,927.88 is: 362,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,995.96 : 529,311 = 262,927.88 : x
  2. Step 2: Convert to fraction form
    383,995.96/529,311 = 262,927.88/x
  3. Step 3: Cross multiply
    383,995.96x = 529,311 × 262,927.88
  4. Step 4: Simplify right side
    383,995.96x = 139,170,619,090.68
  5. Step 5: Solve for x
    x = 139,170,619,090.68/383,995.96
  6. Step 6: Final answer
    x = 362,427.30

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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.