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Finding the Fourth Proportional to 294,485.45, 406,378.85 and 179,955.61

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Solution

The fourth proportional to 294,485.45, 406,378.85 and 179,955.61 is: 248,331.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,485.45 : 406,378.85 = 179,955.61 : x
  2. Step 2: Convert to fraction form
    294,485.45/406,378.85 = 179,955.61/x
  3. Step 3: Cross multiply
    294,485.45x = 406,378.85 × 179,955.61
  4. Step 4: Simplify right side
    294,485.45x = 73,130,151,927.12
  5. Step 5: Solve for x
    x = 73,130,151,927.12/294,485.45
  6. Step 6: Final answer
    x = 248,331.97

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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.