Home / 1,238,310.96-1,857,468.40-339,765

Finding the Fourth Proportional to 1,238,310.96, 1,857,468.40 and 339,765

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Solution

The fourth proportional to 1,238,310.96, 1,857,468.40 and 339,765 is: 509,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,310.96 : 1,857,468.40 = 339,765 : x
  2. Step 2: Convert to fraction form
    1,238,310.96/1,857,468.40 = 339,765/x
  3. Step 3: Cross multiply
    1,238,310.96x = 1,857,468.40 × 339,765
  4. Step 4: Simplify right side
    1,238,310.96x = 631,102,750,926
  5. Step 5: Solve for x
    x = 631,102,750,926/1,238,310.96
  6. Step 6: Final answer
    x = 509,648.04

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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.