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Finding the Fourth Proportional to 621,811, 932,740.80 and 195,637.60

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Solution

The fourth proportional to 621,811, 932,740.80 and 195,637.60 is: 293,464.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,811 : 932,740.80 = 195,637.60 : x
  2. Step 2: Convert to fraction form
    621,811/932,740.80 = 195,637.60/x
  3. Step 3: Cross multiply
    621,811x = 932,740.80 × 195,637.60
  4. Step 4: Simplify right side
    621,811x = 182,479,171,534.08
  5. Step 5: Solve for x
    x = 182,479,171,534.08/621,811
  6. Step 6: Final answer
    x = 293,464.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.