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Finding the Fourth Proportional to 605,836.20, 908,754.30 and 403,757.40

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Solution

The fourth proportional to 605,836.20, 908,754.30 and 403,757.40 is: 605,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,836.20 : 908,754.30 = 403,757.40 : x
  2. Step 2: Convert to fraction form
    605,836.20/908,754.30 = 403,757.40/x
  3. Step 3: Cross multiply
    605,836.20x = 908,754.30 × 403,757.40
  4. Step 4: Simplify right side
    605,836.20x = 366,916,273,406.82
  5. Step 5: Solve for x
    x = 366,916,273,406.82/605,836.20
  6. Step 6: Final answer
    x = 605,636.10

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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.