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Finding the Fourth Proportional to 297,776.40, 446,664.60 and 171,805.20

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Solution

The fourth proportional to 297,776.40, 446,664.60 and 171,805.20 is: 257,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,776.40 : 446,664.60 = 171,805.20 : x
  2. Step 2: Convert to fraction form
    297,776.40/446,664.60 = 171,805.20/x
  3. Step 3: Cross multiply
    297,776.40x = 446,664.60 × 171,805.20
  4. Step 4: Simplify right side
    297,776.40x = 76,739,300,935.92
  5. Step 5: Solve for x
    x = 76,739,300,935.92/297,776.40
  6. Step 6: Final answer
    x = 257,707.80

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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.