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Finding the Fourth Proportional to 383,577.28, 529,524.48 and 297,345.76

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Solution

The fourth proportional to 383,577.28, 529,524.48 and 297,345.76 is: 410,482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,577.28 : 529,524.48 = 297,345.76 : x
  2. Step 2: Convert to fraction form
    383,577.28/529,524.48 = 297,345.76/x
  3. Step 3: Cross multiply
    383,577.28x = 529,524.48 × 297,345.76
  4. Step 4: Simplify right side
    383,577.28x = 157,451,858,944.21
  5. Step 5: Solve for x
    x = 157,451,858,944.21/383,577.28
  6. Step 6: Final answer
    x = 410,482.76

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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.