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Finding the Fourth Proportional to 400,722.26, 552,996.72 and 230,967.32

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Solution

The fourth proportional to 400,722.26, 552,996.72 and 230,967.32 is: 318,734.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,722.26 : 552,996.72 = 230,967.32 : x
  2. Step 2: Convert to fraction form
    400,722.26/552,996.72 = 230,967.32/x
  3. Step 3: Cross multiply
    400,722.26x = 552,996.72 × 230,967.32
  4. Step 4: Simplify right side
    400,722.26x = 127,724,170,387.19
  5. Step 5: Solve for x
    x = 127,724,170,387.19/400,722.26
  6. Step 6: Final answer
    x = 318,734.90

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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.