Home / 1,211,576.60-1,671,682.07-688,170.77

Finding the Fourth Proportional to 1,211,576.60, 1,671,682.07 and 688,170.77

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Solution

The fourth proportional to 1,211,576.60, 1,671,682.07 and 688,170.77 is: 949,508.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,576.60 : 1,671,682.07 = 688,170.77 : x
  2. Step 2: Convert to fraction form
    1,211,576.60/1,671,682.07 = 688,170.77/x
  3. Step 3: Cross multiply
    1,211,576.60x = 1,671,682.07 × 688,170.77
  4. Step 4: Simplify right side
    1,211,576.60x = 1,150,402,733,866.24
  5. Step 5: Solve for x
    x = 1,150,402,733,866.24/1,211,576.60
  6. Step 6: Final answer
    x = 949,508.87

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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.