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Finding the Fourth Proportional to 587,135.48, 810,233.24 and 345,433.64

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Solution

The fourth proportional to 587,135.48, 810,233.24 and 345,433.64 is: 476,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,135.48 : 810,233.24 = 345,433.64 : x
  2. Step 2: Convert to fraction form
    587,135.48/810,233.24 = 345,433.64/x
  3. Step 3: Cross multiply
    587,135.48x = 810,233.24 × 345,433.64
  4. Step 4: Simplify right side
    587,135.48x = 279,881,811,563.86
  5. Step 5: Solve for x
    x = 279,881,811,563.86/587,135.48
  6. Step 6: Final answer
    x = 476,690.34

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1.5x scale

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.