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Finding the Fourth Proportional to 472,621.20, 709,392.60 and 236,230.80

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Solution

The fourth proportional to 472,621.20, 709,392.60 and 236,230.80 is: 354,576.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,621.20 : 709,392.60 = 236,230.80 : x
  2. Step 2: Convert to fraction form
    472,621.20/709,392.60 = 236,230.80/x
  3. Step 3: Cross multiply
    472,621.20x = 709,392.60 × 236,230.80
  4. Step 4: Simplify right side
    472,621.20x = 167,580,381,412.08
  5. Step 5: Solve for x
    x = 167,580,381,412.08/472,621.20
  6. Step 6: Final answer
    x = 354,576.52

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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.