Home / 1,383,280.75-1,910,502.08-929,784.43

Finding the Fourth Proportional to 1,383,280.75, 1,910,502.08 and 929,784.43

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Solution

The fourth proportional to 1,383,280.75, 1,910,502.08 and 929,784.43 is: 1,284,160.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,280.75 : 1,910,502.08 = 929,784.43 : x
  2. Step 2: Convert to fraction form
    1,383,280.75/1,910,502.08 = 929,784.43/x
  3. Step 3: Cross multiply
    1,383,280.75x = 1,910,502.08 × 929,784.43
  4. Step 4: Simplify right side
    1,383,280.75x = 1,776,355,082,817.69
  5. Step 5: Solve for x
    x = 1,776,355,082,817.69/1,383,280.75
  6. Step 6: Final answer
    x = 1,284,160.92

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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.