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Finding the Fourth Proportional to 547,523.03, 820,139.39 and 440,328.14

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Solution

The fourth proportional to 547,523.03, 820,139.39 and 440,328.14 is: 659,571.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,523.03 : 820,139.39 = 440,328.14 : x
  2. Step 2: Convert to fraction form
    547,523.03/820,139.39 = 440,328.14/x
  3. Step 3: Cross multiply
    547,523.03x = 820,139.39 × 440,328.14
  4. Step 4: Simplify right side
    547,523.03x = 361,130,449,937.79
  5. Step 5: Solve for x
    x = 361,130,449,937.79/547,523.03
  6. Step 6: Final answer
    x = 659,571.25

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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.