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Finding the Fourth Proportional to 619,914, 929,870.96 and 199,485.12

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Solution

The fourth proportional to 619,914, 929,870.96 and 199,485.12 is: 299,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,914 : 929,870.96 = 199,485.12 : x
  2. Step 2: Convert to fraction form
    619,914/929,870.96 = 199,485.12/x
  3. Step 3: Cross multiply
    619,914x = 929,870.96 × 199,485.12
  4. Step 4: Simplify right side
    619,914x = 185,495,420,040.12
  5. Step 5: Solve for x
    x = 185,495,420,040.12/619,914
  6. Step 6: Final answer
    x = 299,227.67

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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.