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Finding the Fourth Proportional to 578,375.10, 866,979.45 and 263,058.30

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Solution

The fourth proportional to 578,375.10, 866,979.45 and 263,058.30 is: 394,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,375.10 : 866,979.45 = 263,058.30 : x
  2. Step 2: Convert to fraction form
    578,375.10/866,979.45 = 263,058.30/x
  3. Step 3: Cross multiply
    578,375.10x = 866,979.45 × 263,058.30
  4. Step 4: Simplify right side
    578,375.10x = 228,066,140,251.94
  5. Step 5: Solve for x
    x = 228,066,140,251.94/578,375.10
  6. Step 6: Final answer
    x = 394,322.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.