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Finding the Fourth Proportional to 384,996.34, 531,360.51 and 223,944.75

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Solution

The fourth proportional to 384,996.34, 531,360.51 and 223,944.75 is: 309,081.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,996.34 : 531,360.51 = 223,944.75 : x
  2. Step 2: Convert to fraction form
    384,996.34/531,360.51 = 223,944.75/x
  3. Step 3: Cross multiply
    384,996.34x = 531,360.51 × 223,944.75
  4. Step 4: Simplify right side
    384,996.34x = 118,995,395,732.03
  5. Step 5: Solve for x
    x = 118,995,395,732.03/384,996.34
  6. Step 6: Final answer
    x = 309,081.89

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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.