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Finding the Fourth Proportional to 622,643.10, 933,964.65 and 610,833.30

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Solution

The fourth proportional to 622,643.10, 933,964.65 and 610,833.30 is: 916,249.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,643.10 : 933,964.65 = 610,833.30 : x
  2. Step 2: Convert to fraction form
    622,643.10/933,964.65 = 610,833.30/x
  3. Step 3: Cross multiply
    622,643.10x = 933,964.65 × 610,833.30
  4. Step 4: Simplify right side
    622,643.10x = 570,496,709,242.85
  5. Step 5: Solve for x
    x = 570,496,709,242.85/622,643.10
  6. Step 6: Final answer
    x = 916,249.95

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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.