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Finding the Fourth Proportional to 469,323.60, 647,662.65 and 265,414.56

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Solution

The fourth proportional to 469,323.60, 647,662.65 and 265,414.56 is: 366,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,323.60 : 647,662.65 = 265,414.56 : x
  2. Step 2: Convert to fraction form
    469,323.60/647,662.65 = 265,414.56/x
  3. Step 3: Cross multiply
    469,323.60x = 647,662.65 × 265,414.56
  4. Step 4: Simplify right side
    469,323.60x = 171,899,097,278.18
  5. Step 5: Solve for x
    x = 171,899,097,278.18/469,323.60
  6. Step 6: Final answer
    x = 366,269.88

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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.