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Finding the Fourth Proportional to 348,338.56, 522,740.58 and 126,722.56

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Solution

The fourth proportional to 348,338.56, 522,740.58 and 126,722.56 is: 190,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,338.56 : 522,740.58 = 126,722.56 : x
  2. Step 2: Convert to fraction form
    348,338.56/522,740.58 = 126,722.56/x
  3. Step 3: Cross multiply
    348,338.56x = 522,740.58 × 126,722.56
  4. Step 4: Simplify right side
    348,338.56x = 66,243,024,513.48
  5. Step 5: Solve for x
    x = 66,243,024,513.48/348,338.56
  6. Step 6: Final answer
    x = 190,168.51

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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.