Home / 838,709.11-1,157,467.21-631,606.73

Finding the Fourth Proportional to 838,709.11, 1,157,467.21 and 631,606.73

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Solution

The fourth proportional to 838,709.11, 1,157,467.21 and 631,606.73 is: 871,653.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,709.11 : 1,157,467.21 = 631,606.73 : x
  2. Step 2: Convert to fraction form
    838,709.11/1,157,467.21 = 631,606.73/x
  3. Step 3: Cross multiply
    838,709.11x = 1,157,467.21 × 631,606.73
  4. Step 4: Simplify right side
    838,709.11x = 731,064,072,223.97
  5. Step 5: Solve for x
    x = 731,064,072,223.97/838,709.11
  6. Step 6: Final answer
    x = 871,653.91

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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.