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Finding the Fourth Proportional to 571,705.68, 789,130.49 and 367,756.59

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Solution

The fourth proportional to 571,705.68, 789,130.49 and 367,756.59 is: 507,617.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,705.68 : 789,130.49 = 367,756.59 : x
  2. Step 2: Convert to fraction form
    571,705.68/789,130.49 = 367,756.59/x
  3. Step 3: Cross multiply
    571,705.68x = 789,130.49 × 367,756.59
  4. Step 4: Simplify right side
    571,705.68x = 290,207,938,067.43
  5. Step 5: Solve for x
    x = 290,207,938,067.43/571,705.68
  6. Step 6: Final answer
    x = 507,617.73

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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.