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Finding the Fourth Proportional to 305,590.80, 458,385.12 and 95,228.88

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Solution

The fourth proportional to 305,590.80, 458,385.12 and 95,228.88 is: 142,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,590.80 : 458,385.12 = 95,228.88 : x
  2. Step 2: Convert to fraction form
    305,590.80/458,385.12 = 95,228.88/x
  3. Step 3: Cross multiply
    305,590.80x = 458,385.12 × 95,228.88
  4. Step 4: Simplify right side
    305,590.80x = 43,651,501,586.27
  5. Step 5: Solve for x
    x = 43,651,501,586.27/305,590.80
  6. Step 6: Final answer
    x = 142,842.98

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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.