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Finding the Fourth Proportional to 658,847.25, 909,209.25 and 357,041.25

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Solution

The fourth proportional to 658,847.25, 909,209.25 and 357,041.25 is: 492,716.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,847.25 : 909,209.25 = 357,041.25 : x
  2. Step 2: Convert to fraction form
    658,847.25/909,209.25 = 357,041.25/x
  3. Step 3: Cross multiply
    658,847.25x = 909,209.25 × 357,041.25
  4. Step 4: Simplify right side
    658,847.25x = 324,625,207,131.56
  5. Step 5: Solve for x
    x = 324,625,207,131.56/658,847.25
  6. Step 6: Final answer
    x = 492,716.95

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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.