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Finding the Fourth Proportional to 383,674.77, 529,475.13 and 211,598.91

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Solution

The fourth proportional to 383,674.77, 529,475.13 and 211,598.91 is: 292,008.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,674.77 : 529,475.13 = 211,598.91 : x
  2. Step 2: Convert to fraction form
    383,674.77/529,475.13 = 211,598.91/x
  3. Step 3: Cross multiply
    383,674.77x = 529,475.13 × 211,598.91
  4. Step 4: Simplify right side
    383,674.77x = 112,036,360,380.11
  5. Step 5: Solve for x
    x = 112,036,360,380.11/383,674.77
  6. Step 6: Final answer
    x = 292,008.67

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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.