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Finding the Fourth Proportional to 298,316.09, 411,694.58 and 171,010.82

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Solution

The fourth proportional to 298,316.09, 411,694.58 and 171,010.82 is: 236,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,316.09 : 411,694.58 = 171,010.82 : x
  2. Step 2: Convert to fraction form
    298,316.09/411,694.58 = 171,010.82/x
  3. Step 3: Cross multiply
    298,316.09x = 411,694.58 × 171,010.82
  4. Step 4: Simplify right side
    298,316.09x = 70,404,227,715.36
  5. Step 5: Solve for x
    x = 70,404,227,715.36/298,316.09
  6. Step 6: Final answer
    x = 236,005.47

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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.