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Finding the Fourth Proportional to 275,658.65, 380,450.07 and 168,290.92

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Solution

The fourth proportional to 275,658.65, 380,450.07 and 168,290.92 is: 232,266.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,658.65 : 380,450.07 = 168,290.92 : x
  2. Step 2: Convert to fraction form
    275,658.65/380,450.07 = 168,290.92/x
  3. Step 3: Cross multiply
    275,658.65x = 380,450.07 × 168,290.92
  4. Step 4: Simplify right side
    275,658.65x = 64,026,291,343.24
  5. Step 5: Solve for x
    x = 64,026,291,343.24/275,658.65
  6. Step 6: Final answer
    x = 232,266.58

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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.