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Finding the Fourth Proportional to 318,220.92, 439,156.62 and 174,993.48

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Solution

The fourth proportional to 318,220.92, 439,156.62 and 174,993.48 is: 241,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,220.92 : 439,156.62 = 174,993.48 : x
  2. Step 2: Convert to fraction form
    318,220.92/439,156.62 = 174,993.48/x
  3. Step 3: Cross multiply
    318,220.92x = 439,156.62 × 174,993.48
  4. Step 4: Simplify right side
    318,220.92x = 76,849,545,198.84
  5. Step 5: Solve for x
    x = 76,849,545,198.84/318,220.92
  6. Step 6: Final answer
    x = 241,497.46

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Double scale
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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.