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Finding the Fourth Proportional to 196,278.30, 275,411.70 and 196,278.30

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Solution

The fourth proportional to 196,278.30, 275,411.70 and 196,278.30 is: 275,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,278.30 : 275,411.70 = 196,278.30 : x
  2. Step 2: Convert to fraction form
    196,278.30/275,411.70 = 196,278.30/x
  3. Step 3: Cross multiply
    196,278.30x = 275,411.70 × 196,278.30
  4. Step 4: Simplify right side
    196,278.30x = 54,057,340,276.11
  5. Step 5: Solve for x
    x = 54,057,340,276.11/196,278.30
  6. Step 6: Final answer
    x = 275,411.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.