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Finding the Fourth Proportional to 436,906.20, 655,359.30 and 170,675.40

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Solution

The fourth proportional to 436,906.20, 655,359.30 and 170,675.40 is: 256,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,906.20 : 655,359.30 = 170,675.40 : x
  2. Step 2: Convert to fraction form
    436,906.20/655,359.30 = 170,675.40/x
  3. Step 3: Cross multiply
    436,906.20x = 655,359.30 × 170,675.40
  4. Step 4: Simplify right side
    436,906.20x = 111,853,710,671.22
  5. Step 5: Solve for x
    x = 111,853,710,671.22/436,906.20
  6. Step 6: Final answer
    x = 256,013.10

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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.