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Finding the Fourth Proportional to 340,710.37, 470,200.89 and 187,748.30

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Solution

The fourth proportional to 340,710.37, 470,200.89 and 187,748.30 is: 259,103.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,710.37 : 470,200.89 = 187,748.30 : x
  2. Step 2: Convert to fraction form
    340,710.37/470,200.89 = 187,748.30/x
  3. Step 3: Cross multiply
    340,710.37x = 470,200.89 × 187,748.30
  4. Step 4: Simplify right side
    340,710.37x = 88,279,417,755.99
  5. Step 5: Solve for x
    x = 88,279,417,755.99/340,710.37
  6. Step 6: Final answer
    x = 259,103.99

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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.