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Finding the Fourth Proportional to 403,763.94, 557,060.49 and 260,619.12

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Solution

The fourth proportional to 403,763.94, 557,060.49 and 260,619.12 is: 359,568.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,763.94 : 557,060.49 = 260,619.12 : x
  2. Step 2: Convert to fraction form
    403,763.94/557,060.49 = 260,619.12/x
  3. Step 3: Cross multiply
    403,763.94x = 557,060.49 × 260,619.12
  4. Step 4: Simplify right side
    403,763.94x = 145,180,614,690.57
  5. Step 5: Solve for x
    x = 145,180,614,690.57/403,763.94
  6. Step 6: Final answer
    x = 359,568.06

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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.