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Finding the Fourth Proportional to 645,561.80, 967,176.30 and 552,249.80

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Solution

The fourth proportional to 645,561.80, 967,176.30 and 552,249.80 is: 827,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,561.80 : 967,176.30 = 552,249.80 : x
  2. Step 2: Convert to fraction form
    645,561.80/967,176.30 = 552,249.80/x
  3. Step 3: Cross multiply
    645,561.80x = 967,176.30 × 552,249.80
  4. Step 4: Simplify right side
    645,561.80x = 534,122,918,239.74
  5. Step 5: Solve for x
    x = 534,122,918,239.74/645,561.80
  6. Step 6: Final answer
    x = 827,376.90

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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.