Home / 1,917,561.36-2,877,441.03-780,113.61

Finding the Fourth Proportional to 1,917,561.36, 2,877,441.03 and 780,113.61

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Solution

The fourth proportional to 1,917,561.36, 2,877,441.03 and 780,113.61 is: 1,170,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,561.36 : 2,877,441.03 = 780,113.61 : x
  2. Step 2: Convert to fraction form
    1,917,561.36/2,877,441.03 = 780,113.61/x
  3. Step 3: Cross multiply
    1,917,561.36x = 2,877,441.03 × 780,113.61
  4. Step 4: Simplify right side
    1,917,561.36x = 2,244,730,909,475.42
  5. Step 5: Solve for x
    x = 2,244,730,909,475.42/1,917,561.36
  6. Step 6: Final answer
    x = 1,170,617.51

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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.