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Finding the Fourth Proportional to 456,789.96, 685,230.58 and 157,230.90

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Solution

The fourth proportional to 456,789.96, 685,230.58 and 157,230.90 is: 235,862.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,789.96 : 685,230.58 = 157,230.90 : x
  2. Step 2: Convert to fraction form
    456,789.96/685,230.58 = 157,230.90/x
  3. Step 3: Cross multiply
    456,789.96x = 685,230.58 × 157,230.90
  4. Step 4: Simplify right side
    456,789.96x = 107,739,420,800.92
  5. Step 5: Solve for x
    x = 107,739,420,800.92/456,789.96
  6. Step 6: Final answer
    x = 235,862.06

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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.