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Finding the Fourth Proportional to 599,998.72, 828,206.58 and 345,451.36

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Solution

The fourth proportional to 599,998.72, 828,206.58 and 345,451.36 is: 476,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,998.72 : 828,206.58 = 345,451.36 : x
  2. Step 2: Convert to fraction form
    599,998.72/828,206.58 = 345,451.36/x
  3. Step 3: Cross multiply
    599,998.72x = 828,206.58 × 345,451.36
  4. Step 4: Simplify right side
    599,998.72x = 286,105,089,421.95
  5. Step 5: Solve for x
    x = 286,105,089,421.95/599,998.72
  6. Step 6: Final answer
    x = 476,842.83

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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.