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Finding the Fourth Proportional to 624,317.60, 936,735.60 and 399,931.04

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Solution

The fourth proportional to 624,317.60, 936,735.60 and 399,931.04 is: 600,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,317.60 : 936,735.60 = 399,931.04 : x
  2. Step 2: Convert to fraction form
    624,317.60/936,735.60 = 399,931.04/x
  3. Step 3: Cross multiply
    624,317.60x = 936,735.60 × 399,931.04
  4. Step 4: Simplify right side
    624,317.60x = 374,629,642,713.02
  5. Step 5: Solve for x
    x = 374,629,642,713.02/624,317.60
  6. Step 6: Final answer
    x = 600,062.60

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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.