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Finding the Fourth Proportional to 590,507.10, 885,587.85 and 211,383.90

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Solution

The fourth proportional to 590,507.10, 885,587.85 and 211,383.90 is: 317,013.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,507.10 : 885,587.85 = 211,383.90 : x
  2. Step 2: Convert to fraction form
    590,507.10/885,587.85 = 211,383.90/x
  3. Step 3: Cross multiply
    590,507.10x = 885,587.85 × 211,383.90
  4. Step 4: Simplify right side
    590,507.10x = 187,199,013,525.62
  5. Step 5: Solve for x
    x = 187,199,013,525.62/590,507.10
  6. Step 6: Final answer
    x = 317,013.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.