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Finding the Fourth Proportional to 404,790.80, 606,700.20 and 168,011.60

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Solution

The fourth proportional to 404,790.80, 606,700.20 and 168,011.60 is: 251,815.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,790.80 : 606,700.20 = 168,011.60 : x
  2. Step 2: Convert to fraction form
    404,790.80/606,700.20 = 168,011.60/x
  3. Step 3: Cross multiply
    404,790.80x = 606,700.20 × 168,011.60
  4. Step 4: Simplify right side
    404,790.80x = 101,932,671,322.32
  5. Step 5: Solve for x
    x = 101,932,671,322.32/404,790.80
  6. Step 6: Final answer
    x = 251,815.68

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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.