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Finding the Fourth Proportional to 620,568.87, 931,225.16 and 265,583.26

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Solution

The fourth proportional to 620,568.87, 931,225.16 and 265,583.26 is: 398,534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,568.87 : 931,225.16 = 265,583.26 : x
  2. Step 2: Convert to fraction form
    620,568.87/931,225.16 = 265,583.26/x
  3. Step 3: Cross multiply
    620,568.87x = 931,225.16 × 265,583.26
  4. Step 4: Simplify right side
    620,568.87x = 247,317,813,786.82
  5. Step 5: Solve for x
    x = 247,317,813,786.82/620,568.87
  6. Step 6: Final answer
    x = 398,534.03

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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.