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Finding the Fourth Proportional to 544,810.20, 817,215.30 and 308,614.20

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Solution

The fourth proportional to 544,810.20, 817,215.30 and 308,614.20 is: 462,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,810.20 : 817,215.30 = 308,614.20 : x
  2. Step 2: Convert to fraction form
    544,810.20/817,215.30 = 308,614.20/x
  3. Step 3: Cross multiply
    544,810.20x = 817,215.30 × 308,614.20
  4. Step 4: Simplify right side
    544,810.20x = 252,204,246,037.26
  5. Step 5: Solve for x
    x = 252,204,246,037.26/544,810.20
  6. Step 6: Final answer
    x = 462,921.30

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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.