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Finding the Fourth Proportional to 622,538.20, 933,807.30 and 617,872.60

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Solution

The fourth proportional to 622,538.20, 933,807.30 and 617,872.60 is: 926,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,538.20 : 933,807.30 = 617,872.60 : x
  2. Step 2: Convert to fraction form
    622,538.20/933,807.30 = 617,872.60/x
  3. Step 3: Cross multiply
    622,538.20x = 933,807.30 × 617,872.60
  4. Step 4: Simplify right side
    622,538.20x = 576,973,944,349.98
  5. Step 5: Solve for x
    x = 576,973,944,349.98/622,538.20
  6. Step 6: Final answer
    x = 926,808.90

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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.