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Finding the Fourth Proportional to 571,957.42, 789,371.24 and 330,239.59

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Solution

The fourth proportional to 571,957.42, 789,371.24 and 330,239.59 is: 455,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,957.42 : 789,371.24 = 330,239.59 : x
  2. Step 2: Convert to fraction form
    571,957.42/789,371.24 = 330,239.59/x
  3. Step 3: Cross multiply
    571,957.42x = 789,371.24 × 330,239.59
  4. Step 4: Simplify right side
    571,957.42x = 260,681,634,655.39
  5. Step 5: Solve for x
    x = 260,681,634,655.39/571,957.42
  6. Step 6: Final answer
    x = 455,771.05

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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.