Home / 1,218,392.55-1,827,564.30-419,656.41

Finding the Fourth Proportional to 1,218,392.55, 1,827,564.30 and 419,656.41

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Solution

The fourth proportional to 1,218,392.55, 1,827,564.30 and 419,656.41 is: 629,476.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,392.55 : 1,827,564.30 = 419,656.41 : x
  2. Step 2: Convert to fraction form
    1,218,392.55/1,827,564.30 = 419,656.41/x
  3. Step 3: Cross multiply
    1,218,392.55x = 1,827,564.30 × 419,656.41
  4. Step 4: Simplify right side
    1,218,392.55x = 766,949,073,182.16
  5. Step 5: Solve for x
    x = 766,949,073,182.16/1,218,392.55
  6. Step 6: Final answer
    x = 629,476.17

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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.