Home / 871,684.18-1,203,021.57-527,709.64

Finding the Fourth Proportional to 871,684.18, 1,203,021.57 and 527,709.64

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Solution

The fourth proportional to 871,684.18, 1,203,021.57 and 527,709.64 is: 728,298.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,684.18 : 1,203,021.57 = 527,709.64 : x
  2. Step 2: Convert to fraction form
    871,684.18/1,203,021.57 = 527,709.64/x
  3. Step 3: Cross multiply
    871,684.18x = 1,203,021.57 × 527,709.64
  4. Step 4: Simplify right side
    871,684.18x = 634,846,079,616.94
  5. Step 5: Solve for x
    x = 634,846,079,616.94/871,684.18
  6. Step 6: Final answer
    x = 728,298.27

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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.