Home / 619,059.11-853,938.59-389,252.12

Finding the Fourth Proportional to 619,059.11, 853,938.59 and 389,252.12

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Solution

The fourth proportional to 619,059.11, 853,938.59 and 389,252.12 is: 536,939.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,059.11 : 853,938.59 = 389,252.12 : x
  2. Step 2: Convert to fraction form
    619,059.11/853,938.59 = 389,252.12/x
  3. Step 3: Cross multiply
    619,059.11x = 853,938.59 × 389,252.12
  4. Step 4: Simplify right side
    619,059.11x = 332,397,400,291.36
  5. Step 5: Solve for x
    x = 332,397,400,291.36/619,059.11
  6. Step 6: Final answer
    x = 536,939.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.