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Finding the Fourth Proportional to 297,323.10, 446,052.72 and 128,871.60

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Solution

The fourth proportional to 297,323.10, 446,052.72 and 128,871.60 is: 193,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,323.10 : 446,052.72 = 128,871.60 : x
  2. Step 2: Convert to fraction form
    297,323.10/446,052.72 = 128,871.60/x
  3. Step 3: Cross multiply
    297,323.10x = 446,052.72 × 128,871.60
  4. Step 4: Simplify right side
    297,323.10x = 57,483,527,710.75
  5. Step 5: Solve for x
    x = 57,483,527,710.75/297,323.10
  6. Step 6: Final answer
    x = 193,336.90

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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.