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Finding the Fourth Proportional to 713,245.80, 1,069,523.10 and 397,367.40

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Solution

The fourth proportional to 713,245.80, 1,069,523.10 and 397,367.40 is: 595,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,245.80 : 1,069,523.10 = 397,367.40 : x
  2. Step 2: Convert to fraction form
    713,245.80/1,069,523.10 = 397,367.40/x
  3. Step 3: Cross multiply
    713,245.80x = 1,069,523.10 × 397,367.40
  4. Step 4: Simplify right side
    713,245.80x = 424,993,613,486.94
  5. Step 5: Solve for x
    x = 424,993,613,486.94/713,245.80
  6. Step 6: Final answer
    x = 595,858.56

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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.