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Finding the Fourth Proportional to 471,807.55, 707,121.14 and 371,571.87

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Solution

The fourth proportional to 471,807.55, 707,121.14 and 371,571.87 is: 556,893.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,807.55 : 707,121.14 = 371,571.87 : x
  2. Step 2: Convert to fraction form
    471,807.55/707,121.14 = 371,571.87/x
  3. Step 3: Cross multiply
    471,807.55x = 707,121.14 × 371,571.87
  4. Step 4: Simplify right side
    471,807.55x = 262,746,324,306.33
  5. Step 5: Solve for x
    x = 262,746,324,306.33/471,807.55
  6. Step 6: Final answer
    x = 556,893.01

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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.