Home / 1,278,679.57-1,764,569.11-705,719.72

Finding the Fourth Proportional to 1,278,679.57, 1,764,569.11 and 705,719.72

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Solution

The fourth proportional to 1,278,679.57, 1,764,569.11 and 705,719.72 is: 973,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,679.57 : 1,764,569.11 = 705,719.72 : x
  2. Step 2: Convert to fraction form
    1,278,679.57/1,764,569.11 = 705,719.72/x
  3. Step 3: Cross multiply
    1,278,679.57x = 1,764,569.11 × 705,719.72
  4. Step 4: Simplify right side
    1,278,679.57x = 1,245,291,214,701.25
  5. Step 5: Solve for x
    x = 1,245,291,214,701.25/1,278,679.57
  6. Step 6: Final answer
    x = 973,888.41

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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.