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Finding the Fourth Proportional to 299,688.60, 413,819.10 and 199,541.40

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Solution

The fourth proportional to 299,688.60, 413,819.10 and 199,541.40 is: 275,532.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,688.60 : 413,819.10 = 199,541.40 : x
  2. Step 2: Convert to fraction form
    299,688.60/413,819.10 = 199,541.40/x
  3. Step 3: Cross multiply
    299,688.60x = 413,819.10 × 199,541.40
  4. Step 4: Simplify right side
    299,688.60x = 82,574,042,560.74
  5. Step 5: Solve for x
    x = 82,574,042,560.74/299,688.60
  6. Step 6: Final answer
    x = 275,532.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.