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Finding the Fourth Proportional to 282,352.44, 389,651.94 and 155,026.92

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Solution

The fourth proportional to 282,352.44, 389,651.94 and 155,026.92 is: 213,940.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,352.44 : 389,651.94 = 155,026.92 : x
  2. Step 2: Convert to fraction form
    282,352.44/389,651.94 = 155,026.92/x
  3. Step 3: Cross multiply
    282,352.44x = 389,651.94 × 155,026.92
  4. Step 4: Simplify right side
    282,352.44x = 60,406,540,130.22
  5. Step 5: Solve for x
    x = 60,406,540,130.22/282,352.44
  6. Step 6: Final answer
    x = 213,940.21

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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.