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Finding the Fourth Proportional to 568,191.36, 784,148.40 and 326,558.28

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Solution

The fourth proportional to 568,191.36, 784,148.40 and 326,558.28 is: 450,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,191.36 : 784,148.40 = 326,558.28 : x
  2. Step 2: Convert to fraction form
    568,191.36/784,148.40 = 326,558.28/x
  3. Step 3: Cross multiply
    568,191.36x = 784,148.40 × 326,558.28
  4. Step 4: Simplify right side
    568,191.36x = 256,070,152,768.75
  5. Step 5: Solve for x
    x = 256,070,152,768.75/568,191.36
  6. Step 6: Final answer
    x = 450,675.90

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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.