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Finding the Fourth Proportional to 293,486.94, 405,013.59 and 159,350.94

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Solution

The fourth proportional to 293,486.94, 405,013.59 and 159,350.94 is: 219,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,486.94 : 405,013.59 = 159,350.94 : x
  2. Step 2: Convert to fraction form
    293,486.94/405,013.59 = 159,350.94/x
  3. Step 3: Cross multiply
    293,486.94x = 405,013.59 × 159,350.94
  4. Step 4: Simplify right side
    293,486.94x = 64,539,296,279.27
  5. Step 5: Solve for x
    x = 64,539,296,279.27/293,486.94
  6. Step 6: Final answer
    x = 219,905.17

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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.