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Finding the Fourth Proportional to 351,465.89, 485,022.05 and 190,320.93

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Solution

The fourth proportional to 351,465.89, 485,022.05 and 190,320.93 is: 262,642.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,465.89 : 485,022.05 = 190,320.93 : x
  2. Step 2: Convert to fraction form
    351,465.89/485,022.05 = 190,320.93/x
  3. Step 3: Cross multiply
    351,465.89x = 485,022.05 × 190,320.93
  4. Step 4: Simplify right side
    351,465.89x = 92,309,847,626.51
  5. Step 5: Solve for x
    x = 92,309,847,626.51/351,465.89
  6. Step 6: Final answer
    x = 262,642.41

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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.