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Finding the Fourth Proportional to 351,535.34, 485,115.98 and 190,386.68

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Solution

The fourth proportional to 351,535.34, 485,115.98 and 190,386.68 is: 262,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,535.34 : 485,115.98 = 190,386.68 : x
  2. Step 2: Convert to fraction form
    351,535.34/485,115.98 = 190,386.68/x
  3. Step 3: Cross multiply
    351,535.34x = 485,115.98 × 190,386.68
  4. Step 4: Simplify right side
    351,535.34x = 92,359,620,847.15
  5. Step 5: Solve for x
    x = 92,359,620,847.15/351,535.34
  6. Step 6: Final answer
    x = 262,732.11

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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.