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Finding the Fourth Proportional to 587,137.48, 810,235.91 and 345,435.60

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Solution

The fourth proportional to 587,137.48, 810,235.91 and 345,435.60 is: 476,693.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,137.48 : 810,235.91 = 345,435.60 : x
  2. Step 2: Convert to fraction form
    587,137.48/810,235.91 = 345,435.60/x
  3. Step 3: Cross multiply
    587,137.48x = 810,235.91 × 345,435.60
  4. Step 4: Simplify right side
    587,137.48x = 279,884,331,614.37
  5. Step 5: Solve for x
    x = 279,884,331,614.37/587,137.48
  6. Step 6: Final answer
    x = 476,693.01

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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.