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Finding the Fourth Proportional to 572,237.82, 789,651.45 and 357,365.07

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Solution

The fourth proportional to 572,237.82, 789,651.45 and 357,365.07 is: 493,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,237.82 : 789,651.45 = 357,365.07 : x
  2. Step 2: Convert to fraction form
    572,237.82/789,651.45 = 357,365.07/x
  3. Step 3: Cross multiply
    572,237.82x = 789,651.45 × 357,365.07
  4. Step 4: Simplify right side
    572,237.82x = 282,193,845,704.85
  5. Step 5: Solve for x
    x = 282,193,845,704.85/572,237.82
  6. Step 6: Final answer
    x = 493,140.85

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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.