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Finding the Fourth Proportional to 581,016.38, 871,557.37 and 207,039.38

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Solution

The fourth proportional to 581,016.38, 871,557.37 and 207,039.38 is: 310,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,016.38 : 871,557.37 = 207,039.38 : x
  2. Step 2: Convert to fraction form
    581,016.38/871,557.37 = 207,039.38/x
  3. Step 3: Cross multiply
    581,016.38x = 871,557.37 × 207,039.38
  4. Step 4: Simplify right side
    581,016.38x = 180,446,692,643.85
  5. Step 5: Solve for x
    x = 180,446,692,643.85/581,016.38
  6. Step 6: Final answer
    x = 310,570.75

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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.