Home / 1,435,561.28-1,981,076.80-782,184.32

Finding the Fourth Proportional to 1,435,561.28, 1,981,076.80 and 782,184.32

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Solution

The fourth proportional to 1,435,561.28, 1,981,076.80 and 782,184.32 is: 1,079,415.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,561.28 : 1,981,076.80 = 782,184.32 : x
  2. Step 2: Convert to fraction form
    1,435,561.28/1,981,076.80 = 782,184.32/x
  3. Step 3: Cross multiply
    1,435,561.28x = 1,981,076.80 × 782,184.32
  4. Step 4: Simplify right side
    1,435,561.28x = 1,549,567,209,675.78
  5. Step 5: Solve for x
    x = 1,549,567,209,675.78/1,435,561.28
  6. Step 6: Final answer
    x = 1,079,415.58

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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.