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Finding the Fourth Proportional to 297,800.32, 447,079.56 and 193,057.60

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Solution

The fourth proportional to 297,800.32, 447,079.56 and 193,057.60 is: 289,832.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,800.32 : 447,079.56 = 193,057.60 : x
  2. Step 2: Convert to fraction form
    297,800.32/447,079.56 = 193,057.60/x
  3. Step 3: Cross multiply
    297,800.32x = 447,079.56 × 193,057.60
  4. Step 4: Simplify right side
    297,800.32x = 86,312,106,862.66
  5. Step 5: Solve for x
    x = 86,312,106,862.66/297,800.32
  6. Step 6: Final answer
    x = 289,832.15

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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.