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Finding the Fourth Proportional to 573,321.90, 858,998.70 and 373,539.45

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Solution

The fourth proportional to 573,321.90, 858,998.70 and 373,539.45 is: 559,667.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,321.90 : 858,998.70 = 373,539.45 : x
  2. Step 2: Convert to fraction form
    573,321.90/858,998.70 = 373,539.45/x
  3. Step 3: Cross multiply
    573,321.90x = 858,998.70 × 373,539.45
  4. Step 4: Simplify right side
    573,321.90x = 320,869,901,948.72
  5. Step 5: Solve for x
    x = 320,869,901,948.72/573,321.90
  6. Step 6: Final answer
    x = 559,667.97

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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.