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Finding the Fourth Proportional to 471,806.55, 707,119.64 and 371,570.87

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Solution

The fourth proportional to 471,806.55, 707,119.64 and 371,570.87 is: 556,891.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,806.55 : 707,119.64 = 371,570.87 : x
  2. Step 2: Convert to fraction form
    471,806.55/707,119.64 = 371,570.87/x
  3. Step 3: Cross multiply
    471,806.55x = 707,119.64 × 371,570.87
  4. Step 4: Simplify right side
    471,806.55x = 262,745,061,132.22
  5. Step 5: Solve for x
    x = 262,745,061,132.22/471,806.55
  6. Step 6: Final answer
    x = 556,891.51

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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.