Home / 1,247,600.16-1,721,688.26-674,640.36

Finding the Fourth Proportional to 1,247,600.16, 1,721,688.26 and 674,640.36

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Solution

The fourth proportional to 1,247,600.16, 1,721,688.26 and 674,640.36 is: 931,003.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,600.16 : 1,721,688.26 = 674,640.36 : x
  2. Step 2: Convert to fraction form
    1,247,600.16/1,721,688.26 = 674,640.36/x
  3. Step 3: Cross multiply
    1,247,600.16x = 1,721,688.26 × 674,640.36
  4. Step 4: Simplify right side
    1,247,600.16x = 1,161,520,384,160.97
  5. Step 5: Solve for x
    x = 1,161,520,384,160.97/1,247,600.16
  6. Step 6: Final answer
    x = 931,003.72

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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.