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Finding the Fourth Proportional to 299,240.70, 448,861.05 and 133,028.70

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Solution

The fourth proportional to 299,240.70, 448,861.05 and 133,028.70 is: 199,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,240.70 : 448,861.05 = 133,028.70 : x
  2. Step 2: Convert to fraction form
    299,240.70/448,861.05 = 133,028.70/x
  3. Step 3: Cross multiply
    299,240.70x = 448,861.05 × 133,028.70
  4. Step 4: Simplify right side
    299,240.70x = 59,711,401,962.14
  5. Step 5: Solve for x
    x = 59,711,401,962.14/299,240.70
  6. Step 6: Final answer
    x = 199,543.05

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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.