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Finding the Fourth Proportional to 305,439.80, 458,202.90 and 95,055.80

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Solution

The fourth proportional to 305,439.80, 458,202.90 and 95,055.80 is: 142,597.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,439.80 : 458,202.90 = 95,055.80 : x
  2. Step 2: Convert to fraction form
    305,439.80/458,202.90 = 95,055.80/x
  3. Step 3: Cross multiply
    305,439.80x = 458,202.90 × 95,055.80
  4. Step 4: Simplify right side
    305,439.80x = 43,554,843,221.82
  5. Step 5: Solve for x
    x = 43,554,843,221.82/305,439.80
  6. Step 6: Final answer
    x = 142,597.14

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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.