Home / 727,451.11-1,003,844.42-405,155.35

Finding the Fourth Proportional to 727,451.11, 1,003,844.42 and 405,155.35

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Solution

The fourth proportional to 727,451.11, 1,003,844.42 and 405,155.35 is: 559,093.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,451.11 : 1,003,844.42 = 405,155.35 : x
  2. Step 2: Convert to fraction form
    727,451.11/1,003,844.42 = 405,155.35/x
  3. Step 3: Cross multiply
    727,451.11x = 1,003,844.42 × 405,155.35
  4. Step 4: Simplify right side
    727,451.11x = 406,712,932,311.43
  5. Step 5: Solve for x
    x = 406,712,932,311.43/727,451.11
  6. Step 6: Final answer
    x = 559,093.15

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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.