Home / 778,493.70-1,168,201.35-513,021.70

Finding the Fourth Proportional to 778,493.70, 1,168,201.35 and 513,021.70

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Solution

The fourth proportional to 778,493.70, 1,168,201.35 and 513,021.70 is: 769,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,493.70 : 1,168,201.35 = 513,021.70 : x
  2. Step 2: Convert to fraction form
    778,493.70/1,168,201.35 = 513,021.70/x
  3. Step 3: Cross multiply
    778,493.70x = 1,168,201.35 × 513,021.70
  4. Step 4: Simplify right side
    778,493.70x = 599,312,642,519.30
  5. Step 5: Solve for x
    x = 599,312,642,519.30/778,493.70
  6. Step 6: Final answer
    x = 769,836.21

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Double scale
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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.