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Finding the Fourth Proportional to 348,039.20, 522,058.80 and 170,892.20

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Solution

The fourth proportional to 348,039.20, 522,058.80 and 170,892.20 is: 256,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,039.20 : 522,058.80 = 170,892.20 : x
  2. Step 2: Convert to fraction form
    348,039.20/522,058.80 = 170,892.20/x
  3. Step 3: Cross multiply
    348,039.20x = 522,058.80 × 170,892.20
  4. Step 4: Simplify right side
    348,039.20x = 89,215,776,861.36
  5. Step 5: Solve for x
    x = 89,215,776,861.36/348,039.20
  6. Step 6: Final answer
    x = 256,338.30

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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.