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Finding the Fourth Proportional to 534,587.28, 737,139.39 and 340,687.98

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Solution

The fourth proportional to 534,587.28, 737,139.39 and 340,687.98 is: 469,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,587.28 : 737,139.39 = 340,687.98 : x
  2. Step 2: Convert to fraction form
    534,587.28/737,139.39 = 340,687.98/x
  3. Step 3: Cross multiply
    534,587.28x = 737,139.39 × 340,687.98
  4. Step 4: Simplify right side
    534,587.28x = 251,134,529,757.53
  5. Step 5: Solve for x
    x = 251,134,529,757.53/534,587.28
  6. Step 6: Final answer
    x = 469,772.74

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1.5x scale

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.