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Finding the Fourth Proportional to 279,955.33, 386,340.11 and 152,633.05

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Solution

The fourth proportional to 279,955.33, 386,340.11 and 152,633.05 is: 210,634.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,955.33 : 386,340.11 = 152,633.05 : x
  2. Step 2: Convert to fraction form
    279,955.33/386,340.11 = 152,633.05/x
  3. Step 3: Cross multiply
    279,955.33x = 386,340.11 × 152,633.05
  4. Step 4: Simplify right side
    279,955.33x = 58,968,269,326.64
  5. Step 5: Solve for x
    x = 58,968,269,326.64/279,955.33
  6. Step 6: Final answer
    x = 210,634.57

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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.