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Finding the Fourth Proportional to 383,999.40, 576,171.90 and 134,860.20

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Solution

The fourth proportional to 383,999.40, 576,171.90 and 134,860.20 is: 202,350.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,999.40 : 576,171.90 = 134,860.20 : x
  2. Step 2: Convert to fraction form
    383,999.40/576,171.90 = 134,860.20/x
  3. Step 3: Cross multiply
    383,999.40x = 576,171.90 × 134,860.20
  4. Step 4: Simplify right side
    383,999.40x = 77,702,657,668.38
  5. Step 5: Solve for x
    x = 77,702,657,668.38/383,999.40
  6. Step 6: Final answer
    x = 202,350.99

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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.