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Finding the Fourth Proportional to 587,903.05, 811,282.56 and 346,195.81

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Solution

The fourth proportional to 587,903.05, 811,282.56 and 346,195.81 is: 477,736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,903.05 : 811,282.56 = 346,195.81 : x
  2. Step 2: Convert to fraction form
    587,903.05/811,282.56 = 346,195.81/x
  3. Step 3: Cross multiply
    587,903.05x = 811,282.56 × 346,195.81
  4. Step 4: Simplify right side
    587,903.05x = 280,862,622,998.07
  5. Step 5: Solve for x
    x = 280,862,622,998.07/587,903.05
  6. Step 6: Final answer
    x = 477,736.29

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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.