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Finding the Fourth Proportional to 417,700.88, 576,428.32 and 226,714.27

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Solution

The fourth proportional to 417,700.88, 576,428.32 and 226,714.27 is: 312,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,700.88 : 576,428.32 = 226,714.27 : x
  2. Step 2: Convert to fraction form
    417,700.88/576,428.32 = 226,714.27/x
  3. Step 3: Cross multiply
    417,700.88x = 576,428.32 × 226,714.27
  4. Step 4: Simplify right side
    417,700.88x = 130,684,525,380.44
  5. Step 5: Solve for x
    x = 130,684,525,380.44/417,700.88
  6. Step 6: Final answer
    x = 312,866.29

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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.