Home / 1,129,543.76-1,558,789.44-620,293.52

Finding the Fourth Proportional to 1,129,543.76, 1,558,789.44 and 620,293.52

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Solution

The fourth proportional to 1,129,543.76, 1,558,789.44 and 620,293.52 is: 856,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,543.76 : 1,558,789.44 = 620,293.52 : x
  2. Step 2: Convert to fraction form
    1,129,543.76/1,558,789.44 = 620,293.52/x
  3. Step 3: Cross multiply
    1,129,543.76x = 1,558,789.44 × 620,293.52
  4. Step 4: Simplify right side
    1,129,543.76x = 966,906,988,676.43
  5. Step 5: Solve for x
    x = 966,906,988,676.43/1,129,543.76
  6. Step 6: Final answer
    x = 856,015.52

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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.