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Finding the Fourth Proportional to 627,861.83, 866,425.43 and 341,382.15

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Solution

The fourth proportional to 627,861.83, 866,425.43 and 341,382.15 is: 471,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,861.83 : 866,425.43 = 341,382.15 : x
  2. Step 2: Convert to fraction form
    627,861.83/866,425.43 = 341,382.15/x
  3. Step 3: Cross multiply
    627,861.83x = 866,425.43 × 341,382.15
  4. Step 4: Simplify right side
    627,861.83x = 295,782,176,108.08
  5. Step 5: Solve for x
    x = 295,782,176,108.08/627,861.83
  6. Step 6: Final answer
    x = 471,094.38

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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.