Home / 928,051.20-1,392,076.80-571,910.40

Finding the Fourth Proportional to 928,051.20, 1,392,076.80 and 571,910.40

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Solution

The fourth proportional to 928,051.20, 1,392,076.80 and 571,910.40 is: 857,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,051.20 : 1,392,076.80 = 571,910.40 : x
  2. Step 2: Convert to fraction form
    928,051.20/1,392,076.80 = 571,910.40/x
  3. Step 3: Cross multiply
    928,051.20x = 1,392,076.80 × 571,910.40
  4. Step 4: Simplify right side
    928,051.20x = 796,143,199,518.72
  5. Step 5: Solve for x
    x = 796,143,199,518.72/928,051.20
  6. Step 6: Final answer
    x = 857,865.60

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.