Home / 859,793.40-1,289,690.10-354,186.34

Finding the Fourth Proportional to 859,793.40, 1,289,690.10 and 354,186.34

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Solution

The fourth proportional to 859,793.40, 1,289,690.10 and 354,186.34 is: 531,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,793.40 : 1,289,690.10 = 354,186.34 : x
  2. Step 2: Convert to fraction form
    859,793.40/1,289,690.10 = 354,186.34/x
  3. Step 3: Cross multiply
    859,793.40x = 1,289,690.10 × 354,186.34
  4. Step 4: Simplify right side
    859,793.40x = 456,790,613,029.01
  5. Step 5: Solve for x
    x = 456,790,613,029.01/859,793.40
  6. Step 6: Final answer
    x = 531,279.51

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Double scale
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Similar ratio
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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.