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Finding the Fourth Proportional to 580,814.36, 871,190.20 and 181,409.28

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Solution

The fourth proportional to 580,814.36, 871,190.20 and 181,409.28 is: 272,104.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,814.36 : 871,190.20 = 181,409.28 : x
  2. Step 2: Convert to fraction form
    580,814.36/871,190.20 = 181,409.28/x
  3. Step 3: Cross multiply
    580,814.36x = 871,190.20 × 181,409.28
  4. Step 4: Simplify right side
    580,814.36x = 158,041,986,925.06
  5. Step 5: Solve for x
    x = 158,041,986,925.06/580,814.36
  6. Step 6: Final answer
    x = 272,104.13

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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.