Home / 1,285,644.26-1,774,069.79-712,635.68

Finding the Fourth Proportional to 1,285,644.26, 1,774,069.79 and 712,635.68

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Solution

The fourth proportional to 1,285,644.26, 1,774,069.79 and 712,635.68 is: 983,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,644.26 : 1,774,069.79 = 712,635.68 : x
  2. Step 2: Convert to fraction form
    1,285,644.26/1,774,069.79 = 712,635.68/x
  3. Step 3: Cross multiply
    1,285,644.26x = 1,774,069.79 × 712,635.68
  4. Step 4: Simplify right side
    1,285,644.26x = 1,264,265,418,730.58
  5. Step 5: Solve for x
    x = 1,264,265,418,730.58/1,285,644.26
  6. Step 6: Final answer
    x = 983,371.11

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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.