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Finding the Fourth Proportional to 713,496.64, 984,669.60 and 395,544.64

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Solution

The fourth proportional to 713,496.64, 984,669.60 and 395,544.64 is: 545,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,496.64 : 984,669.60 = 395,544.64 : x
  2. Step 2: Convert to fraction form
    713,496.64/984,669.60 = 395,544.64/x
  3. Step 3: Cross multiply
    713,496.64x = 984,669.60 × 395,544.64
  4. Step 4: Simplify right side
    713,496.64x = 389,480,782,450.94
  5. Step 5: Solve for x
    x = 389,480,782,450.94/713,496.64
  6. Step 6: Final answer
    x = 545,876.13

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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.