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Finding the Fourth Proportional to 572,591.60, 857,137.80 and 446,620.40

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Solution

The fourth proportional to 572,591.60, 857,137.80 and 446,620.40 is: 668,565.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,591.60 : 857,137.80 = 446,620.40 : x
  2. Step 2: Convert to fraction form
    572,591.60/857,137.80 = 446,620.40/x
  3. Step 3: Cross multiply
    572,591.60x = 857,137.80 × 446,620.40
  4. Step 4: Simplify right side
    572,591.60x = 382,815,227,091.12
  5. Step 5: Solve for x
    x = 382,815,227,091.12/572,591.60
  6. Step 6: Final answer
    x = 668,565.92

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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.