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Finding the Fourth Proportional to 313,525.92, 432,668.88 and 170,287.44

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Solution

The fourth proportional to 313,525.92, 432,668.88 and 170,287.44 is: 234,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,525.92 : 432,668.88 = 170,287.44 : x
  2. Step 2: Convert to fraction form
    313,525.92/432,668.88 = 170,287.44/x
  3. Step 3: Cross multiply
    313,525.92x = 432,668.88 × 170,287.44
  4. Step 4: Simplify right side
    313,525.92x = 73,678,075,942.87
  5. Step 5: Solve for x
    x = 73,678,075,942.87/313,525.92
  6. Step 6: Final answer
    x = 234,998.36

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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.