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Finding the Fourth Proportional to 662,811.61, 914,389.07 and 447,873.37

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Solution

The fourth proportional to 662,811.61, 914,389.07 and 447,873.37 is: 617,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,811.61 : 914,389.07 = 447,873.37 : x
  2. Step 2: Convert to fraction form
    662,811.61/914,389.07 = 447,873.37/x
  3. Step 3: Cross multiply
    662,811.61x = 914,389.07 × 447,873.37
  4. Step 4: Simplify right side
    662,811.61x = 409,530,512,032.70
  5. Step 5: Solve for x
    x = 409,530,512,032.70/662,811.61
  6. Step 6: Final answer
    x = 617,868.65

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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.