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Finding the Fourth Proportional to 446,816.40, 670,224.60 and 402,579.60

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Solution

The fourth proportional to 446,816.40, 670,224.60 and 402,579.60 is: 603,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,816.40 : 670,224.60 = 402,579.60 : x
  2. Step 2: Convert to fraction form
    446,816.40/670,224.60 = 402,579.60/x
  3. Step 3: Cross multiply
    446,816.40x = 670,224.60 × 402,579.60
  4. Step 4: Simplify right side
    446,816.40x = 269,818,751,378.16
  5. Step 5: Solve for x
    x = 269,818,751,378.16/446,816.40
  6. Step 6: Final answer
    x = 603,869.40

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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.