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Finding the Fourth Proportional to 262,549.40, 393,824.10 and 162,384.80

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Solution

The fourth proportional to 262,549.40, 393,824.10 and 162,384.80 is: 243,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,549.40 : 393,824.10 = 162,384.80 : x
  2. Step 2: Convert to fraction form
    262,549.40/393,824.10 = 162,384.80/x
  3. Step 3: Cross multiply
    262,549.40x = 393,824.10 × 162,384.80
  4. Step 4: Simplify right side
    262,549.40x = 63,951,047,713.68
  5. Step 5: Solve for x
    x = 63,951,047,713.68/262,549.40
  6. Step 6: Final answer
    x = 243,577.20

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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.