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Finding the Fourth Proportional to 574,756.98, 793,189.10 and 320,108.17

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Solution

The fourth proportional to 574,756.98, 793,189.10 and 320,108.17 is: 441,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,756.98 : 793,189.10 = 320,108.17 : x
  2. Step 2: Convert to fraction form
    574,756.98/793,189.10 = 320,108.17/x
  3. Step 3: Cross multiply
    574,756.98x = 793,189.10 × 320,108.17
  4. Step 4: Simplify right side
    574,756.98x = 253,906,311,264.95
  5. Step 5: Solve for x
    x = 253,906,311,264.95/574,756.98
  6. Step 6: Final answer
    x = 441,762.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.