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Finding the Fourth Proportional to 534,586.28, 737,138 and 340,686.98

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Solution

The fourth proportional to 534,586.28, 737,138 and 340,686.98 is: 469,771.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,586.28 : 737,138 = 340,686.98 : x
  2. Step 2: Convert to fraction form
    534,586.28/737,138 = 340,686.98/x
  3. Step 3: Cross multiply
    534,586.28x = 737,138 × 340,686.98
  4. Step 4: Simplify right side
    534,586.28x = 251,133,319,063.24
  5. Step 5: Solve for x
    x = 251,133,319,063.24/534,586.28
  6. Step 6: Final answer
    x = 469,771.35

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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.