Home / 351,477.35-485,039-190,332.57

Finding the Fourth Proportional to 351,477.35, 485,039 and 190,332.57

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Solution

The fourth proportional to 351,477.35, 485,039 and 190,332.57 is: 262,659.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,477.35 : 485,039 = 190,332.57 : x
  2. Step 2: Convert to fraction form
    351,477.35/485,039 = 190,332.57/x
  3. Step 3: Cross multiply
    351,477.35x = 485,039 × 190,332.57
  4. Step 4: Simplify right side
    351,477.35x = 92,318,719,420.23
  5. Step 5: Solve for x
    x = 92,318,719,420.23/351,477.35
  6. Step 6: Final answer
    x = 262,659.09

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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.