Home / 287,606.28-396,779.76-190,855.74

Finding the Fourth Proportional to 287,606.28, 396,779.76 and 190,855.74

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Solution

The fourth proportional to 287,606.28, 396,779.76 and 190,855.74 is: 263,303.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,606.28 : 396,779.76 = 190,855.74 : x
  2. Step 2: Convert to fraction form
    287,606.28/396,779.76 = 190,855.74/x
  3. Step 3: Cross multiply
    287,606.28x = 396,779.76 × 190,855.74
  4. Step 4: Simplify right side
    287,606.28x = 75,727,694,711.82
  5. Step 5: Solve for x
    x = 75,727,694,711.82/287,606.28
  6. Step 6: Final answer
    x = 263,303.34

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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.