Home / 1,252,406.45-1,728,321.53-679,446.47

Finding the Fourth Proportional to 1,252,406.45, 1,728,321.53 and 679,446.47

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Solution

The fourth proportional to 1,252,406.45, 1,728,321.53 and 679,446.47 is: 937,636.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,406.45 : 1,728,321.53 = 679,446.47 : x
  2. Step 2: Convert to fraction form
    1,252,406.45/1,728,321.53 = 679,446.47/x
  3. Step 3: Cross multiply
    1,252,406.45x = 1,728,321.53 × 679,446.47
  4. Step 4: Simplify right side
    1,252,406.45x = 1,174,301,957,025.86
  5. Step 5: Solve for x
    x = 1,174,301,957,025.86/1,252,406.45
  6. Step 6: Final answer
    x = 937,636.47

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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.