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Finding the Fourth Proportional to 343,692.43, 474,274.10 and 207,645.98

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Solution

The fourth proportional to 343,692.43, 474,274.10 and 207,645.98 is: 286,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,692.43 : 474,274.10 = 207,645.98 : x
  2. Step 2: Convert to fraction form
    343,692.43/474,274.10 = 207,645.98/x
  3. Step 3: Cross multiply
    343,692.43x = 474,274.10 × 207,645.98
  4. Step 4: Simplify right side
    343,692.43x = 98,481,108,430.86
  5. Step 5: Solve for x
    x = 98,481,108,430.86/343,692.43
  6. Step 6: Final answer
    x = 286,538.49

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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.