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Finding the Fourth Proportional to 572,202.57, 789,602.81 and 357,329.82

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Solution

The fourth proportional to 572,202.57, 789,602.81 and 357,329.82 is: 493,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,202.57 : 789,602.81 = 357,329.82 : x
  2. Step 2: Convert to fraction form
    572,202.57/789,602.81 = 357,329.82/x
  3. Step 3: Cross multiply
    572,202.57x = 789,602.81 × 357,329.82
  4. Step 4: Simplify right side
    572,202.57x = 282,148,628,182.15
  5. Step 5: Solve for x
    x = 282,148,628,182.15/572,202.57
  6. Step 6: Final answer
    x = 493,092.21

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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.