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Finding the Fourth Proportional to 331,267.60, 496,901.40 and 263,616.40

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Solution

The fourth proportional to 331,267.60, 496,901.40 and 263,616.40 is: 395,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,267.60 : 496,901.40 = 263,616.40 : x
  2. Step 2: Convert to fraction form
    331,267.60/496,901.40 = 263,616.40/x
  3. Step 3: Cross multiply
    331,267.60x = 496,901.40 × 263,616.40
  4. Step 4: Simplify right side
    331,267.60x = 130,991,358,222.96
  5. Step 5: Solve for x
    x = 130,991,358,222.96/331,267.60
  6. Step 6: Final answer
    x = 395,424.60

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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.