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Finding the Fourth Proportional to 384,047.56, 530,080.50 and 233,270.92

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Solution

The fourth proportional to 384,047.56, 530,080.50 and 233,270.92 is: 321,971.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,047.56 : 530,080.50 = 233,270.92 : x
  2. Step 2: Convert to fraction form
    384,047.56/530,080.50 = 233,270.92/x
  3. Step 3: Cross multiply
    384,047.56x = 530,080.50 × 233,270.92
  4. Step 4: Simplify right side
    384,047.56x = 123,652,365,909.06
  5. Step 5: Solve for x
    x = 123,652,365,909.06/384,047.56
  6. Step 6: Final answer
    x = 321,971.49

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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.