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Finding the Fourth Proportional to 468,473.64, 647,583.20 and 417,986.76

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Solution

The fourth proportional to 468,473.64, 647,583.20 and 417,986.76 is: 577,793.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,473.64 : 647,583.20 = 417,986.76 : x
  2. Step 2: Convert to fraction form
    468,473.64/647,583.20 = 417,986.76/x
  3. Step 3: Cross multiply
    468,473.64x = 647,583.20 × 417,986.76
  4. Step 4: Simplify right side
    468,473.64x = 270,681,203,598.43
  5. Step 5: Solve for x
    x = 270,681,203,598.43/468,473.64
  6. Step 6: Final answer
    x = 577,793.88

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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.