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Finding the Fourth Proportional to 351,467.90, 485,024.80 and 190,322.94

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Solution

The fourth proportional to 351,467.90, 485,024.80 and 190,322.94 is: 262,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,467.90 : 485,024.80 = 190,322.94 : x
  2. Step 2: Convert to fraction form
    351,467.90/485,024.80 = 190,322.94/x
  3. Step 3: Cross multiply
    351,467.90x = 485,024.80 × 190,322.94
  4. Step 4: Simplify right side
    351,467.90x = 92,311,345,908.91
  5. Step 5: Solve for x
    x = 92,311,345,908.91/351,467.90
  6. Step 6: Final answer
    x = 262,645.17

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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.