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Finding the Fourth Proportional to 576,537.62, 795,609.76 and 318,399.52

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Solution

The fourth proportional to 576,537.62, 795,609.76 and 318,399.52 is: 439,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,537.62 : 795,609.76 = 318,399.52 : x
  2. Step 2: Convert to fraction form
    576,537.62/795,609.76 = 318,399.52/x
  3. Step 3: Cross multiply
    576,537.62x = 795,609.76 × 318,399.52
  4. Step 4: Simplify right side
    576,537.62x = 253,321,764,770.64
  5. Step 5: Solve for x
    x = 253,321,764,770.64/576,537.62
  6. Step 6: Final answer
    x = 439,384.62

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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.