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Finding the Fourth Proportional to 572,793.60, 857,440.80 and 446,822.40

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Solution

The fourth proportional to 572,793.60, 857,440.80 and 446,822.40 is: 668,868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,793.60 : 857,440.80 = 446,822.40 : x
  2. Step 2: Convert to fraction form
    572,793.60/857,440.80 = 446,822.40/x
  3. Step 3: Cross multiply
    572,793.60x = 857,440.80 × 446,822.40
  4. Step 4: Simplify right side
    572,793.60x = 383,123,756,113.92
  5. Step 5: Solve for x
    x = 383,123,756,113.92/572,793.60
  6. Step 6: Final answer
    x = 668,868.78

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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.