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Finding the Fourth Proportional to 274,646.20, 379,048.26 and 153,794.20

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Solution

The fourth proportional to 274,646.20, 379,048.26 and 153,794.20 is: 212,256.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,646.20 : 379,048.26 = 153,794.20 : x
  2. Step 2: Convert to fraction form
    274,646.20/379,048.26 = 153,794.20/x
  3. Step 3: Cross multiply
    274,646.20x = 379,048.26 × 153,794.20
  4. Step 4: Simplify right side
    274,646.20x = 58,295,423,908.09
  5. Step 5: Solve for x
    x = 58,295,423,908.09/274,646.20
  6. Step 6: Final answer
    x = 212,256.44

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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.