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Finding the Fourth Proportional to 403,766.94, 557,064.63 and 260,622.12

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Solution

The fourth proportional to 403,766.94, 557,064.63 and 260,622.12 is: 359,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,766.94 : 557,064.63 = 260,622.12 : x
  2. Step 2: Convert to fraction form
    403,766.94/557,064.63 = 260,622.12/x
  3. Step 3: Cross multiply
    403,766.94x = 557,064.63 × 260,622.12
  4. Step 4: Simplify right side
    403,766.94x = 145,183,364,847.62
  5. Step 5: Solve for x
    x = 145,183,364,847.62/403,766.94
  6. Step 6: Final answer
    x = 359,572.19

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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.