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Finding the Fourth Proportional to 295,347.12, 407,579.06 and 161,211.12

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Solution

The fourth proportional to 295,347.12, 407,579.06 and 161,211.12 is: 222,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,347.12 : 407,579.06 = 161,211.12 : x
  2. Step 2: Convert to fraction form
    295,347.12/407,579.06 = 161,211.12/x
  3. Step 3: Cross multiply
    295,347.12x = 407,579.06 × 161,211.12
  4. Step 4: Simplify right side
    295,347.12x = 65,706,276,751.15
  5. Step 5: Solve for x
    x = 65,706,276,751.15/295,347.12
  6. Step 6: Final answer
    x = 222,471.36

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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.