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Finding the Fourth Proportional to 571,282.11, 855,988.20 and 346,711.38

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Solution

The fourth proportional to 571,282.11, 855,988.20 and 346,711.38 is: 519,499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,282.11 : 855,988.20 = 346,711.38 : x
  2. Step 2: Convert to fraction form
    571,282.11/855,988.20 = 346,711.38/x
  3. Step 3: Cross multiply
    571,282.11x = 855,988.20 × 346,711.38
  4. Step 4: Simplify right side
    571,282.11x = 296,780,850,085.72
  5. Step 5: Solve for x
    x = 296,780,850,085.72/571,282.11
  6. Step 6: Final answer
    x = 519,499.64

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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.