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Finding the Fourth Proportional to 447,768.40, 672,430.20 and 237,816.40

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Solution

The fourth proportional to 447,768.40, 672,430.20 and 237,816.40 is: 357,137.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,768.40 : 672,430.20 = 237,816.40 : x
  2. Step 2: Convert to fraction form
    447,768.40/672,430.20 = 237,816.40/x
  3. Step 3: Cross multiply
    447,768.40x = 672,430.20 × 237,816.40
  4. Step 4: Simplify right side
    447,768.40x = 159,914,929,415.28
  5. Step 5: Solve for x
    x = 159,914,929,415.28/447,768.40
  6. Step 6: Final answer
    x = 357,137.59

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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.