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Finding the Fourth Proportional to 269,365.55, 371,709.15 and 154,619.84

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Solution

The fourth proportional to 269,365.55, 371,709.15 and 154,619.84 is: 213,366.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,365.55 : 371,709.15 = 154,619.84 : x
  2. Step 2: Convert to fraction form
    269,365.55/371,709.15 = 154,619.84/x
  3. Step 3: Cross multiply
    269,365.55x = 371,709.15 × 154,619.84
  4. Step 4: Simplify right side
    269,365.55x = 57,473,608,427.86
  5. Step 5: Solve for x
    x = 57,473,608,427.86/269,365.55
  6. Step 6: Final answer
    x = 213,366.59

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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.