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Finding the Fourth Proportional to 376,506.56, 519,589.68 and 223,507.28

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Solution

The fourth proportional to 376,506.56, 519,589.68 and 223,507.28 is: 308,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,506.56 : 519,589.68 = 223,507.28 : x
  2. Step 2: Convert to fraction form
    376,506.56/519,589.68 = 223,507.28/x
  3. Step 3: Cross multiply
    376,506.56x = 519,589.68 × 223,507.28
  4. Step 4: Simplify right side
    376,506.56x = 116,132,076,092.87
  5. Step 5: Solve for x
    x = 116,132,076,092.87/376,506.56
  6. Step 6: Final answer
    x = 308,446.36

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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.