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Finding the Fourth Proportional to 262,937.40, 394,406.10 and 163,404.60

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Solution

The fourth proportional to 262,937.40, 394,406.10 and 163,404.60 is: 245,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,937.40 : 394,406.10 = 163,404.60 : x
  2. Step 2: Convert to fraction form
    262,937.40/394,406.10 = 163,404.60/x
  3. Step 3: Cross multiply
    262,937.40x = 394,406.10 × 163,404.60
  4. Step 4: Simplify right side
    262,937.40x = 64,447,771,008.06
  5. Step 5: Solve for x
    x = 64,447,771,008.06/262,937.40
  6. Step 6: Final answer
    x = 245,106.90

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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.