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Finding the Fourth Proportional to 354,773.40, 532,548.90 and 221,803.80

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Solution

The fourth proportional to 354,773.40, 532,548.90 and 221,803.80 is: 332,948.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,773.40 : 532,548.90 = 221,803.80 : x
  2. Step 2: Convert to fraction form
    354,773.40/532,548.90 = 221,803.80/x
  3. Step 3: Cross multiply
    354,773.40x = 532,548.90 × 221,803.80
  4. Step 4: Simplify right side
    354,773.40x = 118,121,369,705.82
  5. Step 5: Solve for x
    x = 118,121,369,705.82/354,773.40
  6. Step 6: Final answer
    x = 332,948.78

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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.