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Finding the Fourth Proportional to 451,567.80, 677,351.70 and 171,070.20

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Solution

The fourth proportional to 451,567.80, 677,351.70 and 171,070.20 is: 256,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,567.80 : 677,351.70 = 171,070.20 : x
  2. Step 2: Convert to fraction form
    451,567.80/677,351.70 = 171,070.20/x
  3. Step 3: Cross multiply
    451,567.80x = 677,351.70 × 171,070.20
  4. Step 4: Simplify right side
    451,567.80x = 115,874,690,789.34
  5. Step 5: Solve for x
    x = 115,874,690,789.34/451,567.80
  6. Step 6: Final answer
    x = 256,605.30

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Similar ratio
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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.