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Finding the Fourth Proportional to 454,987.98, 682,482.20 and 155,471.49

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Solution

The fourth proportional to 454,987.98, 682,482.20 and 155,471.49 is: 233,207.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,987.98 : 682,482.20 = 155,471.49 : x
  2. Step 2: Convert to fraction form
    454,987.98/682,482.20 = 155,471.49/x
  3. Step 3: Cross multiply
    454,987.98x = 682,482.20 × 155,471.49
  4. Step 4: Simplify right side
    454,987.98x = 106,106,523,755.12
  5. Step 5: Solve for x
    x = 106,106,523,755.12/454,987.98
  6. Step 6: Final answer
    x = 233,207.31

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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.