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Finding the Fourth Proportional to 417,717.72, 576,450.90 and 226,731.06

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Solution

The fourth proportional to 417,717.72, 576,450.90 and 226,731.06 is: 312,889.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,717.72 : 576,450.90 = 226,731.06 : x
  2. Step 2: Convert to fraction form
    417,717.72/576,450.90 = 226,731.06/x
  3. Step 3: Cross multiply
    417,717.72x = 576,450.90 × 226,731.06
  4. Step 4: Simplify right side
    417,717.72x = 130,699,323,594.95
  5. Step 5: Solve for x
    x = 130,699,323,594.95/417,717.72
  6. Step 6: Final answer
    x = 312,889.11

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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.