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Finding the Fourth Proportional to 291,705.20, 437,557.80 and 197,226.80

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Solution

The fourth proportional to 291,705.20, 437,557.80 and 197,226.80 is: 295,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,705.20 : 437,557.80 = 197,226.80 : x
  2. Step 2: Convert to fraction form
    291,705.20/437,557.80 = 197,226.80/x
  3. Step 3: Cross multiply
    291,705.20x = 437,557.80 × 197,226.80
  4. Step 4: Simplify right side
    291,705.20x = 86,298,124,709.04
  5. Step 5: Solve for x
    x = 86,298,124,709.04/291,705.20
  6. Step 6: Final answer
    x = 295,840.20

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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.