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Finding the Fourth Proportional to 393,530.88, 543,056.52 and 232,438.08

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Solution

The fourth proportional to 393,530.88, 543,056.52 and 232,438.08 is: 320,755.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,530.88 : 543,056.52 = 232,438.08 : x
  2. Step 2: Convert to fraction form
    393,530.88/543,056.52 = 232,438.08/x
  3. Step 3: Cross multiply
    393,530.88x = 543,056.52 × 232,438.08
  4. Step 4: Simplify right side
    393,530.88x = 126,227,014,840.28
  5. Step 5: Solve for x
    x = 126,227,014,840.28/393,530.88
  6. Step 6: Final answer
    x = 320,755.04

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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.