Home / 1,257,645.15-1,735,581.51-684,716.76

Finding the Fourth Proportional to 1,257,645.15, 1,735,581.51 and 684,716.76

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Solution

The fourth proportional to 1,257,645.15, 1,735,581.51 and 684,716.76 is: 944,926.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,645.15 : 1,735,581.51 = 684,716.76 : x
  2. Step 2: Convert to fraction form
    1,257,645.15/1,735,581.51 = 684,716.76/x
  3. Step 3: Cross multiply
    1,257,645.15x = 1,735,581.51 × 684,716.76
  4. Step 4: Simplify right side
    1,257,645.15x = 1,188,381,748,243.11
  5. Step 5: Solve for x
    x = 1,188,381,748,243.11/1,257,645.15
  6. Step 6: Final answer
    x = 944,926.12

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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.