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Finding the Fourth Proportional to 379,774.56, 524,101.68 and 209,998.56

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Solution

The fourth proportional to 379,774.56, 524,101.68 and 209,998.56 is: 289,805.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,774.56 : 524,101.68 = 209,998.56 : x
  2. Step 2: Convert to fraction form
    379,774.56/524,101.68 = 209,998.56/x
  3. Step 3: Cross multiply
    379,774.56x = 524,101.68 × 209,998.56
  4. Step 4: Simplify right side
    379,774.56x = 110,060,598,093.58
  5. Step 5: Solve for x
    x = 110,060,598,093.58/379,774.56
  6. Step 6: Final answer
    x = 289,805.08

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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.