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Finding the Fourth Proportional to 365,028.60, 547,283.70 and 140,302.20

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Solution

The fourth proportional to 365,028.60, 547,283.70 and 140,302.20 is: 210,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,028.60 : 547,283.70 = 140,302.20 : x
  2. Step 2: Convert to fraction form
    365,028.60/547,283.70 = 140,302.20/x
  3. Step 3: Cross multiply
    365,028.60x = 547,283.70 × 140,302.20
  4. Step 4: Simplify right side
    365,028.60x = 76,785,107,134.14
  5. Step 5: Solve for x
    x = 76,785,107,134.14/365,028.60
  6. Step 6: Final answer
    x = 210,353.67

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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.