Home / 721,982.00-996,439.41-415,999.77

Finding the Fourth Proportional to 721,982.00, 996,439.41 and 415,999.77

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Solution

The fourth proportional to 721,982.00, 996,439.41 and 415,999.77 is: 574,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,982.00 : 996,439.41 = 415,999.77 : x
  2. Step 2: Convert to fraction form
    721,982.00/996,439.41 = 415,999.77/x
  3. Step 3: Cross multiply
    721,982.00x = 996,439.41 × 415,999.77
  4. Step 4: Simplify right side
    721,982.00x = 414,518,565,378.94
  5. Step 5: Solve for x
    x = 414,518,565,378.94/721,982.00
  6. Step 6: Final answer
    x = 574,139.75

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1.5x scale

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.