Home / 1,285,145.60-1,773,511.36-712,195.20

Finding the Fourth Proportional to 1,285,145.60, 1,773,511.36 and 712,195.20

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Solution

The fourth proportional to 1,285,145.60, 1,773,511.36 and 712,195.20 is: 982,835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,145.60 : 1,773,511.36 = 712,195.20 : x
  2. Step 2: Convert to fraction form
    1,285,145.60/1,773,511.36 = 712,195.20/x
  3. Step 3: Cross multiply
    1,285,145.60x = 1,773,511.36 × 712,195.20
  4. Step 4: Simplify right side
    1,285,145.60x = 1,263,086,277,737.47
  5. Step 5: Solve for x
    x = 1,263,086,277,737.47/1,285,145.60
  6. Step 6: Final answer
    x = 982,835.16

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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.