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Finding the Fourth Proportional to 383,885.40, 576,000.90 and 184,128.60

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Solution

The fourth proportional to 383,885.40, 576,000.90 and 184,128.60 is: 276,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,885.40 : 576,000.90 = 184,128.60 : x
  2. Step 2: Convert to fraction form
    383,885.40/576,000.90 = 184,128.60/x
  3. Step 3: Cross multiply
    383,885.40x = 576,000.90 × 184,128.60
  4. Step 4: Simplify right side
    383,885.40x = 106,058,239,315.74
  5. Step 5: Solve for x
    x = 106,058,239,315.74/383,885.40
  6. Step 6: Final answer
    x = 276,275.78

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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.