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Finding the Fourth Proportional to 361,798.57, 499,312.65 and 200,705.50

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Solution

The fourth proportional to 361,798.57, 499,312.65 and 200,705.50 is: 276,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,798.57 : 499,312.65 = 200,705.50 : x
  2. Step 2: Convert to fraction form
    361,798.57/499,312.65 = 200,705.50/x
  3. Step 3: Cross multiply
    361,798.57x = 499,312.65 × 200,705.50
  4. Step 4: Simplify right side
    361,798.57x = 100,214,795,074.58
  5. Step 5: Solve for x
    x = 100,214,795,074.58/361,798.57
  6. Step 6: Final answer
    x = 276,990.58

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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.