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Finding the Fourth Proportional to 472,858.20, 709,748.10 and 236,467.80

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Solution

The fourth proportional to 472,858.20, 709,748.10 and 236,467.80 is: 354,932.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,858.20 : 709,748.10 = 236,467.80 : x
  2. Step 2: Convert to fraction form
    472,858.20/709,748.10 = 236,467.80/x
  3. Step 3: Cross multiply
    472,858.20x = 709,748.10 × 236,467.80
  4. Step 4: Simplify right side
    472,858.20x = 167,832,571,761.18
  5. Step 5: Solve for x
    x = 167,832,571,761.18/472,858.20
  6. Step 6: Final answer
    x = 354,932.14

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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.