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Finding the Fourth Proportional to 587,468.70, 810,327.27 and 403,619.58

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Solution

The fourth proportional to 587,468.70, 810,327.27 and 403,619.58 is: 556,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,468.70 : 810,327.27 = 403,619.58 : x
  2. Step 2: Convert to fraction form
    587,468.70/810,327.27 = 403,619.58/x
  3. Step 3: Cross multiply
    587,468.70x = 810,327.27 × 403,619.58
  4. Step 4: Simplify right side
    587,468.70x = 327,063,952,379.95
  5. Step 5: Solve for x
    x = 327,063,952,379.95/587,468.70
  6. Step 6: Final answer
    x = 556,734.26

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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.