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Finding the Fourth Proportional to 297,253.45, 445,880.52 and 126,430.93

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Solution

The fourth proportional to 297,253.45, 445,880.52 and 126,430.93 is: 189,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,253.45 : 445,880.52 = 126,430.93 : x
  2. Step 2: Convert to fraction form
    297,253.45/445,880.52 = 126,430.93/x
  3. Step 3: Cross multiply
    297,253.45x = 445,880.52 × 126,430.93
  4. Step 4: Simplify right side
    297,253.45x = 56,373,086,583.08
  5. Step 5: Solve for x
    x = 56,373,086,583.08/297,253.45
  6. Step 6: Final answer
    x = 189,646.54

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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.