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Finding the Fourth Proportional to 320,190.88, 441,868.08 and 186,054.88

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Solution

The fourth proportional to 320,190.88, 441,868.08 and 186,054.88 is: 256,758.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,190.88 : 441,868.08 = 186,054.88 : x
  2. Step 2: Convert to fraction form
    320,190.88/441,868.08 = 186,054.88/x
  3. Step 3: Cross multiply
    320,190.88x = 441,868.08 × 186,054.88
  4. Step 4: Simplify right side
    320,190.88x = 82,211,712,600.23
  5. Step 5: Solve for x
    x = 82,211,712,600.23/320,190.88
  6. Step 6: Final answer
    x = 256,758.45

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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.