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Finding the Fourth Proportional to 383,190.30, 574,785.45 and 383,190.30

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Solution

The fourth proportional to 383,190.30, 574,785.45 and 383,190.30 is: 574,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,190.30 : 574,785.45 = 383,190.30 : x
  2. Step 2: Convert to fraction form
    383,190.30/574,785.45 = 383,190.30/x
  3. Step 3: Cross multiply
    383,190.30x = 574,785.45 × 383,190.30
  4. Step 4: Simplify right side
    383,190.30x = 220,252,209,021.14
  5. Step 5: Solve for x
    x = 220,252,209,021.14/383,190.30
  6. Step 6: Final answer
    x = 574,785.45

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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.