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Finding the Fourth Proportional to 569,426.15, 852,380.05 and 312,616.30

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Solution

The fourth proportional to 569,426.15, 852,380.05 and 312,616.30 is: 467,958.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,426.15 : 852,380.05 = 312,616.30 : x
  2. Step 2: Convert to fraction form
    569,426.15/852,380.05 = 312,616.30/x
  3. Step 3: Cross multiply
    569,426.15x = 852,380.05 × 312,616.30
  4. Step 4: Simplify right side
    569,426.15x = 266,467,899,165.00
  5. Step 5: Solve for x
    x = 266,467,899,165.00/569,426.15
  6. Step 6: Final answer
    x = 467,958.67

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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.