Home / 1,285,278.40-1,773,684.36-712,355.56

Finding the Fourth Proportional to 1,285,278.40, 1,773,684.36 and 712,355.56

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Solution

The fourth proportional to 1,285,278.40, 1,773,684.36 and 712,355.56 is: 983,050.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,278.40 : 1,773,684.36 = 712,355.56 : x
  2. Step 2: Convert to fraction form
    1,285,278.40/1,773,684.36 = 712,355.56/x
  3. Step 3: Cross multiply
    1,285,278.40x = 1,773,684.36 × 712,355.56
  4. Step 4: Simplify right side
    1,285,278.40x = 1,263,493,915,531.04
  5. Step 5: Solve for x
    x = 1,263,493,915,531.04/1,285,278.40
  6. Step 6: Final answer
    x = 983,050.77

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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.