Home / 985,906.20-1,478,276.10-513,514.20

Finding the Fourth Proportional to 985,906.20, 1,478,276.10 and 513,514.20

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Solution

The fourth proportional to 985,906.20, 1,478,276.10 and 513,514.20 is: 769,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,906.20 : 1,478,276.10 = 513,514.20 : x
  2. Step 2: Convert to fraction form
    985,906.20/1,478,276.10 = 513,514.20/x
  3. Step 3: Cross multiply
    985,906.20x = 1,478,276.10 × 513,514.20
  4. Step 4: Simplify right side
    985,906.20x = 759,115,768,870.62
  5. Step 5: Solve for x
    x = 759,115,768,870.62/985,906.20
  6. Step 6: Final answer
    x = 769,967.54

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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.