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Finding the Fourth Proportional to 351,642.51, 485,265.06 and 190,497.06

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Solution

The fourth proportional to 351,642.51, 485,265.06 and 190,497.06 is: 262,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,642.51 : 485,265.06 = 190,497.06 : x
  2. Step 2: Convert to fraction form
    351,642.51/485,265.06 = 190,497.06/x
  3. Step 3: Cross multiply
    351,642.51x = 485,265.06 × 190,497.06
  4. Step 4: Simplify right side
    351,642.51x = 92,441,567,250.72
  5. Step 5: Solve for x
    x = 92,441,567,250.72/351,642.51
  6. Step 6: Final answer
    x = 262,885.07

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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.