Home / 1,947,779.79-2,689,659.62-1,213,986.41

Finding the Fourth Proportional to 1,947,779.79, 2,689,659.62 and 1,213,986.41

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Solution

The fourth proportional to 1,947,779.79, 2,689,659.62 and 1,213,986.41 is: 1,676,375.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,779.79 : 2,689,659.62 = 1,213,986.41 : x
  2. Step 2: Convert to fraction form
    1,947,779.79/2,689,659.62 = 1,213,986.41/x
  3. Step 3: Cross multiply
    1,947,779.79x = 2,689,659.62 × 1,213,986.41
  4. Step 4: Simplify right side
    1,947,779.79x = 3,265,210,226,205.76
  5. Step 5: Solve for x
    x = 3,265,210,226,205.76/1,947,779.79
  6. Step 6: Final answer
    x = 1,676,375.45

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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.