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Finding the Fourth Proportional to 351,211.77, 484,673.78 and 190,066.83

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Solution

The fourth proportional to 351,211.77, 484,673.78 and 190,066.83 is: 262,293.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,211.77 : 484,673.78 = 190,066.83 : x
  2. Step 2: Convert to fraction form
    351,211.77/484,673.78 = 190,066.83/x
  3. Step 3: Cross multiply
    351,211.77x = 484,673.78 × 190,066.83
  4. Step 4: Simplify right side
    351,211.77x = 92,120,407,900.38
  5. Step 5: Solve for x
    x = 92,120,407,900.38/351,211.77
  6. Step 6: Final answer
    x = 262,293.05

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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.