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Finding the Fourth Proportional to 403,881.08, 556,900.62 and 258,496.52

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Solution

The fourth proportional to 403,881.08, 556,900.62 and 258,496.52 is: 356,433.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,881.08 : 556,900.62 = 258,496.52 : x
  2. Step 2: Convert to fraction form
    403,881.08/556,900.62 = 258,496.52/x
  3. Step 3: Cross multiply
    403,881.08x = 556,900.62 × 258,496.52
  4. Step 4: Simplify right side
    403,881.08x = 143,956,872,255.84
  5. Step 5: Solve for x
    x = 143,956,872,255.84/403,881.08
  6. Step 6: Final answer
    x = 356,433.81

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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.