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Finding the Fourth Proportional to 281,594.25, 388,600.07 and 168,417

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Solution

The fourth proportional to 281,594.25, 388,600.07 and 168,417 is: 232,415.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,594.25 : 388,600.07 = 168,417 : x
  2. Step 2: Convert to fraction form
    281,594.25/388,600.07 = 168,417/x
  3. Step 3: Cross multiply
    281,594.25x = 388,600.07 × 168,417
  4. Step 4: Simplify right side
    281,594.25x = 65,446,857,147.11
  5. Step 5: Solve for x
    x = 65,446,857,147.11/281,594.25
  6. Step 6: Final answer
    x = 232,415.46

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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.