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Finding the Fourth Proportional to 605,112.30, 906,286.05 and 356,280.30

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Solution

The fourth proportional to 605,112.30, 906,286.05 and 356,280.30 is: 533,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,112.30 : 906,286.05 = 356,280.30 : x
  2. Step 2: Convert to fraction form
    605,112.30/906,286.05 = 356,280.30/x
  3. Step 3: Cross multiply
    605,112.30x = 906,286.05 × 356,280.30
  4. Step 4: Simplify right side
    605,112.30x = 322,891,865,779.82
  5. Step 5: Solve for x
    x = 322,891,865,779.82/605,112.30
  6. Step 6: Final answer
    x = 533,606.52

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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.