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Finding the Fourth Proportional to 372,109.80, 558,164.70 and 222,810.60

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Solution

The fourth proportional to 372,109.80, 558,164.70 and 222,810.60 is: 334,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,109.80 : 558,164.70 = 222,810.60 : x
  2. Step 2: Convert to fraction form
    372,109.80/558,164.70 = 222,810.60/x
  3. Step 3: Cross multiply
    372,109.80x = 558,164.70 × 222,810.60
  4. Step 4: Simplify right side
    372,109.80x = 124,365,011,705.82
  5. Step 5: Solve for x
    x = 124,365,011,705.82/372,109.80
  6. Step 6: Final answer
    x = 334,215.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.