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Finding the Fourth Proportional to 417,696.91, 576,420.29 and 226,710.30

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Solution

The fourth proportional to 417,696.91, 576,420.29 and 226,710.30 is: 312,859.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,696.91 : 576,420.29 = 226,710.30 : x
  2. Step 2: Convert to fraction form
    417,696.91/576,420.29 = 226,710.30/x
  3. Step 3: Cross multiply
    417,696.91x = 576,420.29 × 226,710.30
  4. Step 4: Simplify right side
    417,696.91x = 130,680,416,871.99
  5. Step 5: Solve for x
    x = 130,680,416,871.99/417,696.91
  6. Step 6: Final answer
    x = 312,859.43

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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.