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Finding the Fourth Proportional to 318,986.69, 440,211.60 and 183,045.50

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Solution

The fourth proportional to 318,986.69, 440,211.60 and 183,045.50 is: 252,608.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,986.69 : 440,211.60 = 183,045.50 : x
  2. Step 2: Convert to fraction form
    318,986.69/440,211.60 = 183,045.50/x
  3. Step 3: Cross multiply
    318,986.69x = 440,211.60 × 183,045.50
  4. Step 4: Simplify right side
    318,986.69x = 80,578,753,528.33
  5. Step 5: Solve for x
    x = 80,578,753,528.33/318,986.69
  6. Step 6: Final answer
    x = 252,608.52

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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.