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Finding the Fourth Proportional to 823,992.90, 1,235,608.65 and 374,695.62

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Solution

The fourth proportional to 823,992.90, 1,235,608.65 and 374,695.62 is: 561,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,992.90 : 1,235,608.65 = 374,695.62 : x
  2. Step 2: Convert to fraction form
    823,992.90/1,235,608.65 = 374,695.62/x
  3. Step 3: Cross multiply
    823,992.90x = 1,235,608.65 × 374,695.62
  4. Step 4: Simplify right side
    823,992.90x = 462,977,149,189.11
  5. Step 5: Solve for x
    x = 462,977,149,189.11/823,992.90
  6. Step 6: Final answer
    x = 561,870.31

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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.