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Finding the Fourth Proportional to 263,433.20, 369,739.60 and 263,433.20

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Solution

The fourth proportional to 263,433.20, 369,739.60 and 263,433.20 is: 369,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,433.20 : 369,739.60 = 263,433.20 : x
  2. Step 2: Convert to fraction form
    263,433.20/369,739.60 = 263,433.20/x
  3. Step 3: Cross multiply
    263,433.20x = 369,739.60 × 263,433.20
  4. Step 4: Simplify right side
    263,433.20x = 97,401,685,994.72
  5. Step 5: Solve for x
    x = 97,401,685,994.72/263,433.20
  6. Step 6: Final answer
    x = 369,739.60

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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.