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Finding the Fourth Proportional to 385,185.84, 531,333.72 and 232,119.60

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Solution

The fourth proportional to 385,185.84, 531,333.72 and 232,119.60 is: 320,190.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,185.84 : 531,333.72 = 232,119.60 : x
  2. Step 2: Convert to fraction form
    385,185.84/531,333.72 = 232,119.60/x
  3. Step 3: Cross multiply
    385,185.84x = 531,333.72 × 232,119.60
  4. Step 4: Simplify right side
    385,185.84x = 123,332,970,552.91
  5. Step 5: Solve for x
    x = 123,332,970,552.91/385,185.84
  6. Step 6: Final answer
    x = 320,190.82

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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.