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Finding the Fourth Proportional to 417,854.79, 576,639.58 and 226,868.20

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Solution

The fourth proportional to 417,854.79, 576,639.58 and 226,868.20 is: 313,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,854.79 : 576,639.58 = 226,868.20 : x
  2. Step 2: Convert to fraction form
    417,854.79/576,639.58 = 226,868.20/x
  3. Step 3: Cross multiply
    417,854.79x = 576,639.58 × 226,868.20
  4. Step 4: Simplify right side
    417,854.79x = 130,821,183,563.36
  5. Step 5: Solve for x
    x = 130,821,183,563.36/417,854.79
  6. Step 6: Final answer
    x = 313,078.10

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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.