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Finding the Fourth Proportional to 349,259.43, 523,450.89 and 149,344.74

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Solution

The fourth proportional to 349,259.43, 523,450.89 and 149,344.74 is: 223,829.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,259.43 : 523,450.89 = 149,344.74 : x
  2. Step 2: Convert to fraction form
    349,259.43/523,450.89 = 149,344.74/x
  3. Step 3: Cross multiply
    349,259.43x = 523,450.89 × 149,344.74
  4. Step 4: Simplify right side
    349,259.43x = 78,174,634,452.56
  5. Step 5: Solve for x
    x = 78,174,634,452.56/349,259.43
  6. Step 6: Final answer
    x = 223,829.70

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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.