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Finding the Fourth Proportional to 573,868.80, 791,920.80 and 319,217.76

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Solution

The fourth proportional to 573,868.80, 791,920.80 and 319,217.76 is: 440,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,868.80 : 791,920.80 = 319,217.76 : x
  2. Step 2: Convert to fraction form
    573,868.80/791,920.80 = 319,217.76/x
  3. Step 3: Cross multiply
    573,868.80x = 791,920.80 × 319,217.76
  4. Step 4: Simplify right side
    573,868.80x = 252,795,183,873.41
  5. Step 5: Solve for x
    x = 252,795,183,873.41/573,868.80
  6. Step 6: Final answer
    x = 440,510.42

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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.