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Finding the Fourth Proportional to 340,893.48, 470,449.02 and 189,991.56

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Solution

The fourth proportional to 340,893.48, 470,449.02 and 189,991.56 is: 262,197.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,893.48 : 470,449.02 = 189,991.56 : x
  2. Step 2: Convert to fraction form
    340,893.48/470,449.02 = 189,991.56/x
  3. Step 3: Cross multiply
    340,893.48x = 470,449.02 × 189,991.56
  4. Step 4: Simplify right side
    340,893.48x = 89,381,343,210.27
  5. Step 5: Solve for x
    x = 89,381,343,210.27/340,893.48
  6. Step 6: Final answer
    x = 262,197.28

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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.