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Finding the Fourth Proportional to 573,637.20, 860,455.80 and 551,864.40

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Solution

The fourth proportional to 573,637.20, 860,455.80 and 551,864.40 is: 827,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,637.20 : 860,455.80 = 551,864.40 : x
  2. Step 2: Convert to fraction form
    573,637.20/860,455.80 = 551,864.40/x
  3. Step 3: Cross multiply
    573,637.20x = 860,455.80 × 551,864.40
  4. Step 4: Simplify right side
    573,637.20x = 474,854,923,793.52
  5. Step 5: Solve for x
    x = 474,854,923,793.52/573,637.20
  6. Step 6: Final answer
    x = 827,796.60

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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.