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Finding the Fourth Proportional to 340,609.11, 470,036.50 and 187,644.26

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Solution

The fourth proportional to 340,609.11, 470,036.50 and 187,644.26 is: 258,946.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,609.11 : 470,036.50 = 187,644.26 : x
  2. Step 2: Convert to fraction form
    340,609.11/470,036.50 = 187,644.26/x
  3. Step 3: Cross multiply
    340,609.11x = 470,036.50 × 187,644.26
  4. Step 4: Simplify right side
    340,609.11x = 88,199,648,396.20
  5. Step 5: Solve for x
    x = 88,199,648,396.20/340,609.11
  6. Step 6: Final answer
    x = 258,946.83

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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.