Home / 516,815.40-773,910.90-493,195.80

Finding the Fourth Proportional to 516,815.40, 773,910.90 and 493,195.80

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Solution

The fourth proportional to 516,815.40, 773,910.90 and 493,195.80 is: 738,541.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,815.40 : 773,910.90 = 493,195.80 : x
  2. Step 2: Convert to fraction form
    516,815.40/773,910.90 = 493,195.80/x
  3. Step 3: Cross multiply
    516,815.40x = 773,910.90 × 493,195.80
  4. Step 4: Simplify right side
    516,815.40x = 381,689,605,454.22
  5. Step 5: Solve for x
    x = 381,689,605,454.22/516,815.40
  6. Step 6: Final answer
    x = 738,541.47

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1.5x scale

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.