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Finding the Fourth Proportional to 262,313.40, 392,886.90 and 202,956.60

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Solution

The fourth proportional to 262,313.40, 392,886.90 and 202,956.60 is: 303,983.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,313.40 : 392,886.90 = 202,956.60 : x
  2. Step 2: Convert to fraction form
    262,313.40/392,886.90 = 202,956.60/x
  3. Step 3: Cross multiply
    262,313.40x = 392,886.90 × 202,956.60
  4. Step 4: Simplify right side
    262,313.40x = 79,738,989,408.54
  5. Step 5: Solve for x
    x = 79,738,989,408.54/262,313.40
  6. Step 6: Final answer
    x = 303,983.67

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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.