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Finding the Fourth Proportional to 366,189.08, 505,259.20 and 221,018.42

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Solution

The fourth proportional to 366,189.08, 505,259.20 and 221,018.42 is: 304,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,189.08 : 505,259.20 = 221,018.42 : x
  2. Step 2: Convert to fraction form
    366,189.08/505,259.20 = 221,018.42/x
  3. Step 3: Cross multiply
    366,189.08x = 505,259.20 × 221,018.42
  4. Step 4: Simplify right side
    366,189.08x = 111,671,586,443.08
  5. Step 5: Solve for x
    x = 111,671,586,443.08/366,189.08
  6. Step 6: Final answer
    x = 304,956.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.