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Finding the Fourth Proportional to 403,858.98, 557,209.44 and 260,700.48

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Solution

The fourth proportional to 403,858.98, 557,209.44 and 260,700.48 is: 359,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,858.98 : 557,209.44 = 260,700.48 : x
  2. Step 2: Convert to fraction form
    403,858.98/557,209.44 = 260,700.48/x
  3. Step 3: Cross multiply
    403,858.98x = 557,209.44 × 260,700.48
  4. Step 4: Simplify right side
    403,858.98x = 145,264,768,468.53
  5. Step 5: Solve for x
    x = 145,264,768,468.53/403,858.98
  6. Step 6: Final answer
    x = 359,691.81

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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.