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Finding the Fourth Proportional to 341,156.26, 470,217.45 and 239,212.90

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Solution

The fourth proportional to 341,156.26, 470,217.45 and 239,212.90 is: 329,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,156.26 : 470,217.45 = 239,212.90 : x
  2. Step 2: Convert to fraction form
    341,156.26/470,217.45 = 239,212.90/x
  3. Step 3: Cross multiply
    341,156.26x = 470,217.45 × 239,212.90
  4. Step 4: Simplify right side
    341,156.26x = 112,482,079,845.11
  5. Step 5: Solve for x
    x = 112,482,079,845.11/341,156.26
  6. Step 6: Final answer
    x = 329,708.39

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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.