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Finding the Fourth Proportional to 590,978.60, 885,891.90 and 337,999.40

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Solution

The fourth proportional to 590,978.60, 885,891.90 and 337,999.40 is: 506,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,978.60 : 885,891.90 = 337,999.40 : x
  2. Step 2: Convert to fraction form
    590,978.60/885,891.90 = 337,999.40/x
  3. Step 3: Cross multiply
    590,978.60x = 885,891.90 × 337,999.40
  4. Step 4: Simplify right side
    590,978.60x = 299,430,930,664.86
  5. Step 5: Solve for x
    x = 299,430,930,664.86/590,978.60
  6. Step 6: Final answer
    x = 506,669.67

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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.