Home / 1,028,911.68-1,543,447.36-309,197.20

Finding the Fourth Proportional to 1,028,911.68, 1,543,447.36 and 309,197.20

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Solution

The fourth proportional to 1,028,911.68, 1,543,447.36 and 309,197.20 is: 463,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,911.68 : 1,543,447.36 = 309,197.20 : x
  2. Step 2: Convert to fraction form
    1,028,911.68/1,543,447.36 = 309,197.20/x
  3. Step 3: Cross multiply
    1,028,911.68x = 1,543,447.36 × 309,197.20
  4. Step 4: Simplify right side
    1,028,911.68x = 477,229,602,059.39
  5. Step 5: Solve for x
    x = 477,229,602,059.39/1,028,911.68
  6. Step 6: Final answer
    x = 463,819.79

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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.