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Finding the Fourth Proportional to 572,873.60, 857,560.80 and 446,902.40

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Solution

The fourth proportional to 572,873.60, 857,560.80 and 446,902.40 is: 668,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,873.60 : 857,560.80 = 446,902.40 : x
  2. Step 2: Convert to fraction form
    572,873.60/857,560.80 = 446,902.40/x
  3. Step 3: Cross multiply
    572,873.60x = 857,560.80 × 446,902.40
  4. Step 4: Simplify right side
    572,873.60x = 383,245,979,665.92
  5. Step 5: Solve for x
    x = 383,245,979,665.92/572,873.60
  6. Step 6: Final answer
    x = 668,988.73

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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.