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Finding the Fourth Proportional to 559,813.80, 839,183.10 and 185,644.20

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Solution

The fourth proportional to 559,813.80, 839,183.10 and 185,644.20 is: 278,288.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,813.80 : 839,183.10 = 185,644.20 : x
  2. Step 2: Convert to fraction form
    559,813.80/839,183.10 = 185,644.20/x
  3. Step 3: Cross multiply
    559,813.80x = 839,183.10 × 185,644.20
  4. Step 4: Simplify right side
    559,813.80x = 155,789,475,253.02
  5. Step 5: Solve for x
    x = 155,789,475,253.02/559,813.80
  6. Step 6: Final answer
    x = 278,288.02

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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.