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Finding the Fourth Proportional to 409,866.60, 614,799.90 and 276,022.20

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Solution

The fourth proportional to 409,866.60, 614,799.90 and 276,022.20 is: 414,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,866.60 : 614,799.90 = 276,022.20 : x
  2. Step 2: Convert to fraction form
    409,866.60/614,799.90 = 276,022.20/x
  3. Step 3: Cross multiply
    409,866.60x = 614,799.90 × 276,022.20
  4. Step 4: Simplify right side
    409,866.60x = 169,698,420,957.78
  5. Step 5: Solve for x
    x = 169,698,420,957.78/409,866.60
  6. Step 6: Final answer
    x = 414,033.30

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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.