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Finding the Fourth Proportional to 297,776.90, 446,665.35 and 171,805.70

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Solution

The fourth proportional to 297,776.90, 446,665.35 and 171,805.70 is: 257,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,776.90 : 446,665.35 = 171,805.70 : x
  2. Step 2: Convert to fraction form
    297,776.90/446,665.35 = 171,805.70/x
  3. Step 3: Cross multiply
    297,776.90x = 446,665.35 × 171,805.70
  4. Step 4: Simplify right side
    297,776.90x = 76,739,653,122.50
  5. Step 5: Solve for x
    x = 76,739,653,122.50/297,776.90
  6. Step 6: Final answer
    x = 257,708.55

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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.