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Finding the Fourth Proportional to 383,010.30, 574,515.45 and 264,912.30

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Solution

The fourth proportional to 383,010.30, 574,515.45 and 264,912.30 is: 397,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,010.30 : 574,515.45 = 264,912.30 : x
  2. Step 2: Convert to fraction form
    383,010.30/574,515.45 = 264,912.30/x
  3. Step 3: Cross multiply
    383,010.30x = 574,515.45 × 264,912.30
  4. Step 4: Simplify right side
    383,010.30x = 152,196,209,245.04
  5. Step 5: Solve for x
    x = 152,196,209,245.04/383,010.30
  6. Step 6: Final answer
    x = 397,368.45

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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.