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Finding the Fourth Proportional to 289,655.34, 399,649.32 and 174,843.24

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Solution

The fourth proportional to 289,655.34, 399,649.32 and 174,843.24 is: 241,238.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,655.34 : 399,649.32 = 174,843.24 : x
  2. Step 2: Convert to fraction form
    289,655.34/399,649.32 = 174,843.24/x
  3. Step 3: Cross multiply
    289,655.34x = 399,649.32 × 174,843.24
  4. Step 4: Simplify right side
    289,655.34x = 69,875,981,972.60
  5. Step 5: Solve for x
    x = 69,875,981,972.60/289,655.34
  6. Step 6: Final answer
    x = 241,238.37

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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.