Home / 619,621.28-929,344.08-198,842.72

Finding the Fourth Proportional to 619,621.28, 929,344.08 and 198,842.72

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Solution

The fourth proportional to 619,621.28, 929,344.08 and 198,842.72 is: 298,235.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,621.28 : 929,344.08 = 198,842.72 : x
  2. Step 2: Convert to fraction form
    619,621.28/929,344.08 = 198,842.72/x
  3. Step 3: Cross multiply
    619,621.28x = 929,344.08 × 198,842.72
  4. Step 4: Simplify right side
    619,621.28x = 184,793,304,683.10
  5. Step 5: Solve for x
    x = 184,793,304,683.10/619,621.28
  6. Step 6: Final answer
    x = 298,235.89

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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.