Home / 1,247,616.56-1,721,672-703,744.40

Finding the Fourth Proportional to 1,247,616.56, 1,721,672 and 703,744.40

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Solution

The fourth proportional to 1,247,616.56, 1,721,672 and 703,744.40 is: 971,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,616.56 : 1,721,672 = 703,744.40 : x
  2. Step 2: Convert to fraction form
    1,247,616.56/1,721,672 = 703,744.40/x
  3. Step 3: Cross multiply
    1,247,616.56x = 1,721,672 × 703,744.40
  4. Step 4: Simplify right side
    1,247,616.56x = 1,211,617,028,636.80
  5. Step 5: Solve for x
    x = 1,211,617,028,636.80/1,247,616.56
  6. Step 6: Final answer
    x = 971,145.36

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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.