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Finding the Fourth Proportional to 433,451.44, 597,843.48 and 312,990.40

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Solution

The fourth proportional to 433,451.44, 597,843.48 and 312,990.40 is: 431,696.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,451.44 : 597,843.48 = 312,990.40 : x
  2. Step 2: Convert to fraction form
    433,451.44/597,843.48 = 312,990.40/x
  3. Step 3: Cross multiply
    433,451.44x = 597,843.48 × 312,990.40
  4. Step 4: Simplify right side
    433,451.44x = 187,119,269,942.59
  5. Step 5: Solve for x
    x = 187,119,269,942.59/433,451.44
  6. Step 6: Final answer
    x = 431,696.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.