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Finding the Fourth Proportional to 322,721.84, 445,368.42 and 179,492.24

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Solution

The fourth proportional to 322,721.84, 445,368.42 and 179,492.24 is: 247,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,721.84 : 445,368.42 = 179,492.24 : x
  2. Step 2: Convert to fraction form
    322,721.84/445,368.42 = 179,492.24/x
  3. Step 3: Cross multiply
    322,721.84x = 445,368.42 × 179,492.24
  4. Step 4: Simplify right side
    322,721.84x = 79,940,173,104.22
  5. Step 5: Solve for x
    x = 79,940,173,104.22/322,721.84
  6. Step 6: Final answer
    x = 247,706.12

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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.