Home / 838,139.06-1,156,631.94-456,168.58

Finding the Fourth Proportional to 838,139.06, 1,156,631.94 and 456,168.58

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Solution

The fourth proportional to 838,139.06, 1,156,631.94 and 456,168.58 is: 629,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,139.06 : 1,156,631.94 = 456,168.58 : x
  2. Step 2: Convert to fraction form
    838,139.06/1,156,631.94 = 456,168.58/x
  3. Step 3: Cross multiply
    838,139.06x = 1,156,631.94 × 456,168.58
  4. Step 4: Simplify right side
    838,139.06x = 527,619,146,760.87
  5. Step 5: Solve for x
    x = 527,619,146,760.87/838,139.06
  6. Step 6: Final answer
    x = 629,512.66

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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.