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Finding the Fourth Proportional to 483,783.39, 725,580.32 and 459,779.31

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Solution

The fourth proportional to 483,783.39, 725,580.32 and 459,779.31 is: 689,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,783.39 : 725,580.32 = 459,779.31 : x
  2. Step 2: Convert to fraction form
    483,783.39/725,580.32 = 459,779.31/x
  3. Step 3: Cross multiply
    483,783.39x = 725,580.32 × 459,779.31
  4. Step 4: Simplify right side
    483,783.39x = 333,606,816,580.28
  5. Step 5: Solve for x
    x = 333,606,816,580.28/483,783.39
  6. Step 6: Final answer
    x = 689,578.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.