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Finding the Fourth Proportional to 590,442.12, 885,676.86 and 211,388.76

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Solution

The fourth proportional to 590,442.12, 885,676.86 and 211,388.76 is: 317,088.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,442.12 : 885,676.86 = 211,388.76 : x
  2. Step 2: Convert to fraction form
    590,442.12/885,676.86 = 211,388.76/x
  3. Step 3: Cross multiply
    590,442.12x = 885,676.86 × 211,388.76
  4. Step 4: Simplify right side
    590,442.12x = 187,222,133,196.09
  5. Step 5: Solve for x
    x = 187,222,133,196.09/590,442.12
  6. Step 6: Final answer
    x = 317,088.04

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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.