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Finding the Fourth Proportional to 573,072.60, 859,997.70 and 372,905.40

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Solution

The fourth proportional to 573,072.60, 859,997.70 and 372,905.40 is: 559,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,072.60 : 859,997.70 = 372,905.40 : x
  2. Step 2: Convert to fraction form
    573,072.60/859,997.70 = 372,905.40/x
  3. Step 3: Cross multiply
    573,072.60x = 859,997.70 × 372,905.40
  4. Step 4: Simplify right side
    573,072.60x = 320,697,786,317.58
  5. Step 5: Solve for x
    x = 320,697,786,317.58/573,072.60
  6. Step 6: Final answer
    x = 559,611.10

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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.