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Finding the Fourth Proportional to 800,950.13, 1,105,307.20 and 433,427

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Solution

The fourth proportional to 800,950.13, 1,105,307.20 and 433,427 is: 598,127.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,950.13 : 1,105,307.20 = 433,427 : x
  2. Step 2: Convert to fraction form
    800,950.13/1,105,307.20 = 433,427/x
  3. Step 3: Cross multiply
    800,950.13x = 1,105,307.20 × 433,427
  4. Step 4: Simplify right side
    800,950.13x = 479,069,981,607.27
  5. Step 5: Solve for x
    x = 479,069,981,607.27/800,950.13
  6. Step 6: Final answer
    x = 598,127.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.