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Finding the Fourth Proportional to 625,570.80, 939,851.76 and 401,371.56

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Solution

The fourth proportional to 625,570.80, 939,851.76 and 401,371.56 is: 603,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,570.80 : 939,851.76 = 401,371.56 : x
  2. Step 2: Convert to fraction form
    625,570.80/939,851.76 = 401,371.56/x
  3. Step 3: Cross multiply
    625,570.80x = 939,851.76 × 401,371.56
  4. Step 4: Simplify right side
    625,570.80x = 377,229,767,079.95
  5. Step 5: Solve for x
    x = 377,229,767,079.95/625,570.80
  6. Step 6: Final answer
    x = 603,016.90

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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.