Home / 1,205,103.32-1,663,094.53-721,576.05

Finding the Fourth Proportional to 1,205,103.32, 1,663,094.53 and 721,576.05

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Solution

The fourth proportional to 1,205,103.32, 1,663,094.53 and 721,576.05 is: 995,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,103.32 : 1,663,094.53 = 721,576.05 : x
  2. Step 2: Convert to fraction form
    1,205,103.32/1,663,094.53 = 721,576.05/x
  3. Step 3: Cross multiply
    1,205,103.32x = 1,663,094.53 × 721,576.05
  4. Step 4: Simplify right side
    1,205,103.32x = 1,200,049,176,399.37
  5. Step 5: Solve for x
    x = 1,200,049,176,399.37/1,205,103.32
  6. Step 6: Final answer
    x = 995,806.05

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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.