Home / 1,383,610.80-1,909,092.60-840,032.76

Finding the Fourth Proportional to 1,383,610.80, 1,909,092.60 and 840,032.76

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Solution

The fourth proportional to 1,383,610.80, 1,909,092.60 and 840,032.76 is: 1,159,068.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,610.80 : 1,909,092.60 = 840,032.76 : x
  2. Step 2: Convert to fraction form
    1,383,610.80/1,909,092.60 = 840,032.76/x
  3. Step 3: Cross multiply
    1,383,610.80x = 1,909,092.60 × 840,032.76
  4. Step 4: Simplify right side
    1,383,610.80x = 1,603,700,325,873.58
  5. Step 5: Solve for x
    x = 1,603,700,325,873.58/1,383,610.80
  6. Step 6: Final answer
    x = 1,159,068.96

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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.