Home / 838,405.54-1,156,963.35-456,433.66

Finding the Fourth Proportional to 838,405.54, 1,156,963.35 and 456,433.66

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Solution

The fourth proportional to 838,405.54, 1,156,963.35 and 456,433.66 is: 629,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,405.54 : 1,156,963.35 = 456,433.66 : x
  2. Step 2: Convert to fraction form
    838,405.54/1,156,963.35 = 456,433.66/x
  3. Step 3: Cross multiply
    838,405.54x = 1,156,963.35 × 456,433.66
  4. Step 4: Simplify right side
    838,405.54x = 528,077,016,326.36
  5. Step 5: Solve for x
    x = 528,077,016,326.36/838,405.54
  6. Step 6: Final answer
    x = 629,858.69

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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.