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Finding the Fourth Proportional to 340,717.56, 470,246.22 and 189,863.16

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Solution

The fourth proportional to 340,717.56, 470,246.22 and 189,863.16 is: 262,042.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,717.56 : 470,246.22 = 189,863.16 : x
  2. Step 2: Convert to fraction form
    340,717.56/470,246.22 = 189,863.16/x
  3. Step 3: Cross multiply
    340,717.56x = 470,246.22 × 189,863.16
  4. Step 4: Simplify right side
    340,717.56x = 89,282,433,307.26
  5. Step 5: Solve for x
    x = 89,282,433,307.26/340,717.56
  6. Step 6: Final answer
    x = 262,042.36

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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.