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Finding the Fourth Proportional to 905,091.82, 1,248,888 and 523,044.88

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Solution

The fourth proportional to 905,091.82, 1,248,888 and 523,044.88 is: 721,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,091.82 : 1,248,888 = 523,044.88 : x
  2. Step 2: Convert to fraction form
    905,091.82/1,248,888 = 523,044.88/x
  3. Step 3: Cross multiply
    905,091.82x = 1,248,888 × 523,044.88
  4. Step 4: Simplify right side
    905,091.82x = 653,224,474,093.44
  5. Step 5: Solve for x
    x = 653,224,474,093.44/905,091.82
  6. Step 6: Final answer
    x = 721,721.77

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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.