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Finding the Fourth Proportional to 2,894.36, 4,341.90 and 945.88

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Solution

The fourth proportional to 2,894.36, 4,341.90 and 945.88 is: 1,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.36 : 4,341.90 = 945.88 : x
  2. Step 2: Convert to fraction form
    2,894.36/4,341.90 = 945.88/x
  3. Step 3: Cross multiply
    2,894.36x = 4,341.90 × 945.88
  4. Step 4: Simplify right side
    2,894.36x = 4,106,916.37
  5. Step 5: Solve for x
    x = 4,106,916.37/2,894.36
  6. Step 6: Final answer
    x = 1,418.94

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1.5x scale

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.