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Finding the Fourth Proportional to 566,892.56, 782,311.66 and 312,243.75

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Solution

The fourth proportional to 566,892.56, 782,311.66 and 312,243.75 is: 430,896.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,892.56 : 782,311.66 = 312,243.75 : x
  2. Step 2: Convert to fraction form
    566,892.56/782,311.66 = 312,243.75/x
  3. Step 3: Cross multiply
    566,892.56x = 782,311.66 × 312,243.75
  4. Step 4: Simplify right side
    566,892.56x = 244,271,926,387.13
  5. Step 5: Solve for x
    x = 244,271,926,387.13/566,892.56
  6. Step 6: Final answer
    x = 430,896.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.