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Finding the Fourth Proportional to 270,422.20, 404,855.70 and 262,646.20

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Solution

The fourth proportional to 270,422.20, 404,855.70 and 262,646.20 is: 393,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,422.20 : 404,855.70 = 262,646.20 : x
  2. Step 2: Convert to fraction form
    270,422.20/404,855.70 = 262,646.20/x
  3. Step 3: Cross multiply
    270,422.20x = 404,855.70 × 262,646.20
  4. Step 4: Simplify right side
    270,422.20x = 106,333,811,153.34
  5. Step 5: Solve for x
    x = 106,333,811,153.34/270,422.20
  6. Step 6: Final answer
    x = 393,214.06

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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.