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Finding the Fourth Proportional to 318,323.84, 439,349.30 and 182,448.84

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Solution

The fourth proportional to 318,323.84, 439,349.30 and 182,448.84 is: 251,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,323.84 : 439,349.30 = 182,448.84 : x
  2. Step 2: Convert to fraction form
    318,323.84/439,349.30 = 182,448.84/x
  3. Step 3: Cross multiply
    318,323.84x = 439,349.30 × 182,448.84
  4. Step 4: Simplify right side
    318,323.84x = 80,158,769,227.57
  5. Step 5: Solve for x
    x = 80,158,769,227.57/318,323.84
  6. Step 6: Final answer
    x = 251,815.17

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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.