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Finding the Fourth Proportional to 404,653.80, 606,980.70 and 168,166.20

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Solution

The fourth proportional to 404,653.80, 606,980.70 and 168,166.20 is: 252,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,653.80 : 606,980.70 = 168,166.20 : x
  2. Step 2: Convert to fraction form
    404,653.80/606,980.70 = 168,166.20/x
  3. Step 3: Cross multiply
    404,653.80x = 606,980.70 × 168,166.20
  4. Step 4: Simplify right side
    404,653.80x = 102,073,637,792.34
  5. Step 5: Solve for x
    x = 102,073,637,792.34/404,653.80
  6. Step 6: Final answer
    x = 252,249.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.